Puzzles - Brain Teasers

Multiplying my age by 6 then subtracting 6 produces the same result as subtracting 7 from my age then multiplying by 7. How old am I? On my broken ...

It’s a pocket-size brain gym. Here are more than 500 full-color puzzles from the original Big Book of Brain Games—the book that Will Shortz praised...

A car dealer sells two cars for $9,999 each — one at a 10% profit, the other at a 10% loss. Overall, did the dealer make or lose money? How many co...

In a foot race, Abe was neither first nor last. Cal beat Doug, Bruce beat Abe, Abe beat Ed but was beaten by Cal, and Doug beat Bruce. Who was last...

Put your wits—and survival instincts—to the test! In Perilous Problems for Puzzle Lovers, Alex Bellos collects 125 of the world’s greatest stumpers...

Start with a knack for anagrams. Multiply that by a way with numbers. Subtract from the result any morning or late-night fuzzyheadedness. You now k...