A brain teaser is a form of puzzle that requires thought to solve. It often requires thinking in unconventional ways with given constraints in mind; sometimes it also involves lateral thinking. Logic puzzles and riddles are specific types of brain teasers.

Today's Brain Teaser | Archive of all Teasers

Today's Brain Teaser | Archive of all Teasers

*The Brain Teaser: **Scroll Down for your Solution*

1. What is the four-digit number in which the first digit is one third the second, the third is the sum of the first and second, and the last is three times the second?

2. Using only two 2's and any combination of mathematical signs, symbols and functions can you make 5?

3. If today, is today, today. What will tomorrow be yesterday?

Definition of solution - a means of solving a problem or dealing with a difficult situation. Our Free Brain Teaser Newsletter

1. 1349

2. SQRT(.2 ^ -2) - Take .2 and raise it to the power of -2 and then take the square root.

3. Today