1. All cats are animals. All animals have four legs. Therefore:
Answer:
Explanation:
Since all cats are animals and all animals have four legs, it follows that all cats have four legs.
2. No birds are mammals. All sparrows are birds. Therefore:
Answer:
Explanation:
Since no birds are mammals and all sparrows are birds, it follows that no sparrows are mammals.
3. Some flowers are roses. All roses are red. Therefore:
Answer:
Explanation:
Since some flowers are roses and all roses are red, it follows that some flowers are red.
4. All dogs bark. Some pets are dogs. Therefore:
Answer:
Explanation:
Since all dogs bark and some pets are dogs, it follows that some pets bark.
5. No fish can fly. Some birds can fly. Therefore:
Answer:
Explanation:
Since no fish can fly and some birds can fly, it follows that no birds are fish.
6. Every student passed the exam. Some students are athletes. Therefore:
Answer:
Explanation:
Since every student passed the exam and some students are athletes, it follows that some athletes passed the exam.
7. All apples are fruits. Some fruits are sweet. Therefore:
Answer:
Explanation:
Since all apples are fruits and some fruits are sweet, it follows that some apples are sweet.
8. No cats are dogs. All dogs are animals. Therefore:
Answer:
Explanation:
Since no cats are dogs and all dogs are animals, it follows that some animals are not cats.
9. Some cars are fast. All fast things are expensive. Therefore:
Answer:
Explanation:
Since some cars are fast and all fast things are expensive, it follows that some cars are expensive.
10. Every teacher is knowledgeable. Some professors are teachers. Therefore:
Answer:
Explanation:
Since every teacher is knowledgeable and some professors are teachers, it follows that some professors are knowledgeable.
11. All rivers flow to the sea. Some lakes are rivers. Therefore:
Answer:
Explanation:
Since all rivers flow to the sea and some lakes are rivers, it follows that some lakes flow to the sea.
12. No reptiles have fur. Some lizards are reptiles. Therefore:
Answer:
Explanation:
Since no reptiles have fur and some lizards are reptiles, it follows that no lizards have fur.
13. All poets are dreamers. Some writers are poets. Therefore:
Answer:
Explanation:
Since all poets are dreamers and some writers are poets, it follows that some writers are dreamers.
14. Every musician can play an instrument. Some guitarists are musicians. Therefore:
Answer:
Explanation:
Since every musician can play an instrument and some guitarists are musicians, it follows that some guitarists can play an instrument.
15. All planets orbit the sun. Some moons orbit planets. Therefore:
Answer:
Explanation:
Since all planets orbit the sun and some moons orbit planets, it follows indirectly that some moons orbit the sun.
16. No squares are circles. All rectangles are squares. Therefore:
Answer:
Explanation:
Since no squares are circles and all rectangles are squares, it follows that no rectangles are circles.
17. Some birds can swim. All penguins are birds. Therefore:
Answer:
Explanation:
Since some birds can swim and all penguins are birds, it follows that some penguins can swim.
18. Every lawyer is educated. Some judges are lawyers. Therefore:
Answer:
Explanation:
Since every lawyer is educated and some judges are lawyers, it follows that some judges are educated.
19. No insects are mammals. Some butterflies are insects. Therefore:
Answer:
Explanation:
Since no insects are mammals and some butterflies are insects, it follows that no butterflies are mammals.
20. All doctors have a degree. Some surgeons are doctors. Therefore:
Answer:
Explanation:
Since all doctors have a degree and some surgeons are doctors, it follows that some surgeons have a degree.
21. Every flower has petals. Some roses are flowers. Therefore:
Answer:
Explanation:
Since every flower has petals and some roses are flowers, it follows that some roses have petals.
22. No birds can read. Some parrots are birds. Therefore:
Answer:
Explanation:
Since no birds can read and some parrots are birds, it follows that no parrots can read.
23. All mammals have hair. Some dogs are mammals. Therefore:
Answer:
Explanation:
Since all mammals have hair and some dogs are mammals, it follows that some dogs have hair.
24. Every planet has a moon. Some moons have water. Therefore:
Answer:
Explanation:
Since every planet has a moon and some moons have water, it follows indirectly that some planets have water.
25. All trees produce oxygen. Some oaks are trees. Therefore:
Answer:
Explanation:
Since all trees produce oxygen and some oaks are trees, it follows that some oaks produce oxygen.
26. No cars fly. Some planes fly. Therefore:
Answer:
Explanation:
Since no cars fly and some planes fly, it follows that no planes are cars.
27. Every bird has feathers. Some penguins are birds. Therefore:
Answer:
Explanation:
Since every bird has feathers and some penguins are birds, it follows that some penguins have feathers.
28. All apples are fruits. No fruits are vegetables. Therefore:
Answer:
Explanation:
Since all apples are fruits and no fruits are vegetables, it follows that no apples are vegetables.
29. Some books are novels. All novels are interesting. Therefore:
Answer:
Explanation:
Since some books are novels and all novels are interesting, it follows that some books are interesting.
30. Every student studies. Some students are athletes. Therefore:
Answer:
Explanation:
Since every student studies and some students are athletes, it follows that some athletes study.
31. All rivers flow to the ocean. Some lakes are rivers. Therefore:
Answer:
Explanation:
Since all rivers flow to the ocean and some lakes are rivers, it follows that some lakes flow to the ocean.
32. No reptiles have feathers. Some birds have feathers. Therefore:
Answer:
Explanation:
Since no reptiles have feathers and some birds have feathers, it follows that no birds are reptiles.
33. All poets are creative. Some authors are poets. Therefore:
Answer:
Explanation:
Since all poets are creative and some authors are poets, it follows that some authors are creative.
34. Every musician knows music. Some guitarists are musicians. Therefore:
Answer:
Explanation:
Since every musician knows music and some guitarists are musicians, it follows that some guitarists know music.
35. All planets revolve around stars. Some moons revolve around planets. Therefore:
Answer:
Explanation:
Since all planets revolve around stars and some moons revolve around planets, it follows indirectly that some moons revolve around stars.
36. No squares are round. All circles are round. Therefore:
Answer:
Explanation:
Since no squares are round and all circles are round, it follows that no circles are squares.
37. Some fish can swim. All sharks are fish. Therefore:
Answer:
Explanation:
Since some fish can swim and all sharks are fish, it follows that some sharks can swim.
38. Every lawyer is educated. Some judges are lawyers. Therefore:
Answer:
Explanation:
Since every lawyer is educated and some judges are lawyers, it follows that some judges are educated.
39. All mammals have lungs. Some whales are mammals. Therefore:
Answer:
Explanation:
Since all mammals have lungs and some whales are mammals, it follows that some whales have lungs.
40. Every planet orbits a star. Some satellites orbit planets. Therefore:
Answer:
Explanation:
Since every planet orbits a star and some satellites orbit planets, it follows indirectly that some satellites orbit stars.
41. All trees produce oxygen. Some oaks are trees. Therefore:
Answer:
Explanation:
Since all trees produce oxygen and some oaks are trees, it follows that some oaks produce oxygen.
42. No cars are animals. Some vehicles are cars. Therefore:
Answer:
Explanation:
Since no cars are animals and some vehicles are cars, it follows that some vehicles are not animals.
43. Every bird can fly. Some penguins are birds. Therefore:
Answer:
Explanation:
Since every bird can fly and some penguins are birds, it follows that no penguins can fly (assuming the general rule does not consider exceptions like penguins).
44. All apples are healthy. Some snacks are apples. Therefore:
Answer:
Explanation:
Since all apples are healthy and some snacks are apples, it follows that some snacks are healthy.
45. No insects are big. Some ants are insects. Therefore:
Answer:
Explanation:
Since no insects are big and some ants are insects, it follows that no ants are big.
46. All doctors are smart. Some surgeons are doctors. Therefore:
Answer:
Explanation:
Since all doctors are smart and some surgeons are doctors, it follows that some surgeons are smart.
47. Every flower smells good. Some roses are flowers. Therefore:
Answer:
Explanation:
Since every flower smells good and some roses are flowers, it follows that some roses smell good.
48. No reptiles are furry. Some lizards are reptiles. Therefore:
Answer:
Explanation:
Since no reptiles are furry and some lizards are reptiles, it follows that no lizards are furry.
49. All poets write well. Some authors are poets. Therefore:
Answer:
Explanation:
Since all poets write well and some authors are poets, it follows that some authors write well.
50. Every singer can perform. Some musicians are singers. Therefore:
Answer:
Explanation:
Since every singer can perform and some musicians are singers, it follows that some musicians can perform.