Logical Deduction quizzes

51 quizzes of 10 logical deduction questions (reasoning), 516 questions in all and more added as the bank grows. 30 seconds a question. Open a quiz to see what is in it; log in to play, see the right answers and keep your score.

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All Logical Deduction quizzes

Logical Deduction practice questions with answers

Five from this category, new every day.

  1. Question 1

    All birds can fly. Penguin is a bird. Therefore, penguin can fly. Is this reasoning valid?

    • A.Partially valid
    • B.No, it is invalid
    • C.Yes, it is valid
    • D.Cannot be determined
    Show answer

    B. No, it is invalid

  2. Question 2

    If all flowers are plants, and all plants need water, then:

    • A.No flowers need water
    • B.All flowers need water
    • C.Water needs flowers
    • D.Some flowers need water
    Show answer

    B. All flowers need water

  3. Question 3

    All birds have feathers. Penguins are birds. Therefore, penguins ___:

    • A.can fly
    • B.live in trees
    • C.eat insects
    • D.have feathers
    Show answer

    D. have feathers

  4. Question 4

    All cats are animals. Whiskers is a cat. Therefore?

    • A.Whiskers is an animal
    • B.Whiskers is a dog
    • C.All animals are cats
    • D.Whiskers is not an animal
    Show answer

    A. Whiskers is an animal

  5. Question 5

    If some flowers are red and all red things are beautiful, which must be true?

    • A.All beautiful things are flowers
    • B.All flowers are beautiful
    • C.Some flowers are beautiful
    • D.No flowers are red
    Show answer

    C. Some flowers are beautiful

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