World's Hardest Puzzles

If you can match minds with the greatest brains, then you have a chance of solving these puzzles. Try this one right now:

"A word 1 know.

Six letters it contains;

Subtract just one

And twelve, you'll find, remains."

If you can prove that six minus one equals twelve, you win the prize for smart thinking!

If you miss it, or any others in this book, all the answers are in the back. Great cartoons and illustrations will help and entertain, while your brain gets to work on these topnotch, tricky challenges.