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 next term in this series?

100 121 144 202 244 400 ...?

**2.** A 30 year old man married a 25 year old woman. She died at age 50 and her husband was so devastated that he cried for years. Ten years after he stopped crying, he died. If he had lived to be 80, how many years was he a widower?

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

**1.** The terms in the series are one hundred in base ten, one hundred in base nine, one hundred in base eight..., one hundred in base five. The next term in the series is one hundred in base four, which is 1210.

**2.** He was a widower for 25 years.