Brain Teasers for Adults

Sharpen your mind with original brain teasers for adults: lateral thinking puzzles, classic logic problems, quick math teasers and word puzzles. Every teaser comes with a hint, the answer and a short explanation.

How to play Brain Teasers for Adults

• Each round has 10 brain teasers. Read the puzzle carefully: every word matters.
• Need a nudge? Press Hint. Solving a teaser without a hint scores 100 points, with a hint 50.
• When you have an answer (or give up), press Show answer to see the solution and a short explanation, then tap Got it or Not this time.
• Solving teasers in a row builds a streak. At the end of the round, review the ones you missed with their answers.
• Choose decks above the card, add Players to take turns, and turn on the think timer for a challenge.

Controls

• H: show a hint
• Enter: show the answer
• Y / N: got it / not this time

Tips

• Lateral thinking puzzles hide an assumption. Ask yourself what you took for granted when you read the question.
• For logic puzzles, write the facts down as a list or a little table.
• Math teasers love traps like “all but 8” and “half of”. Slow down before answering.

FAQ

What is a good brain teaser for adults?

Try this one: a ball and a bat cost $1.10 together, and the bat costs $1.00 more than the ball. How much is the ball? (Five cents, not ten.) Or: a farmer must ferry a wolf, a goat and a cabbage across a river, one at a time, without anything getting eaten. How?

What are lateral thinking puzzles?

Lateral thinking puzzles describe a strange situation with a simple explanation that is hard to see, because the obvious reading leads you the wrong way. The Lateral Thinking deck has more than 30 of them.

Do brain teasers help your brain?

Puzzles are a fun way to practice careful reading, logical reasoning and creative thinking. Like any skill, you get faster the more you play.

Do all brain teasers have answers?

Yes. Press Show answer for the solution, often with a one-line explanation of why it works.