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Brain teasers with answers

Brain Teasers With Answers

Try brain teasers with answers across logic puzzles, number challenges, word puzzles and visual patterns. Use progressive hints when you need them, then reveal a clearly explained answer.

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A little challenge for today

Daily Brain Teaser

Three drawers each have a statement. Exactly one is true. Can you find where the key is hidden?

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What kind of thinker are you?

Each collection includes ten challenges, progressive hints and worked answers.

10 challenges

Logic Brain Teasers

Use clues, eliminate impossible answers and build a chain of reasoning.

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Number Brain Teasers

Puzzles involving arithmetic, number sense and mathematical reasoning.

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Pattern Brain Teasers

Look for the rule connecting shapes, sequences and numbers.

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Word Brain Teasers

Discover anagrams, wordplay, hidden messages and language puzzles.

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TRY ONE HERE

Four brain teasers to get you started

Choose your hint only if you need it, then reveal the explanation.

LogicMedium

The three drawers

Drawers A, B and C each have a label. A says “The key is in B.” B says “The key is not in B.” C says “The key is not in A.” Exactly one statement is true. Where is the key?

Hint one

Check whether the key could be in B.

Hint two

For B, the first and third labels would both be true.

Reveal the answer
Drawer A

With the key in A, only the label on drawer B is true. B or C would make two labels true.

NumbersEasy

Five consecutive numbers

Five consecutive whole numbers add up to 65. What are the numbers?

Hint one

The middle number is the average.

Hint two

Divide 65 by 5.

Reveal the answer
11, 12, 13, 14 and 15

The average is 13; the two numbers before and after 13 are 11, 12, 14 and 15.

PatternsMedium

Growing letter gaps

What comes next in this sequence of letters: A, C, F, J, O, …?

Hint one

Count how many positions you skip each time.

Hint two

The jumps are +2, +3, +4, +5.

Reveal the answer
U

The next jump is six places: O → U.

WordsEasy

Odd to even

I am an odd number. Remove one letter from my name and I become even. What number am I?

Hint one

Think about spelling numbers.

Hint two

Remove the first letter.

Reveal the answer
Seven

Removing the first letter S from SEVEN leaves EVEN.

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From the original archive

Brain teasers you can hold

See interlocking wooden puzzles from CraftyPuzzles' historic catalogue, including the Six Star, Japanese Crystal and many more. Each preserved listing shows the available specifications and solution links.

See the wooden brain teaser archive

Print and play

Take a challenge offline

Download or print themed activity sheets and a separate answer key. Ideal for puzzle clubs, classroom warm-ups or a quiet afternoon.

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Beyond the riddle

Puzzle instruction image