Count the number of squares in the picture below.

Your job is to measure 45 minutes if you have only two cords and matches to light the cords.

1. The two cords are twisted from various materials, so their different segments can burn at different rates.
2. Each cord burns from end to end in exactly one hour.

Describe your way of measuring the 45 minutes.

If 1+9+8=1, what is 2+8+9?

Can you count the number of squares in the figure below?

How can a man go eight days without sleep?

I’m light as a feather, yet the strongest person can’t hold me for five minutes. What am I?

How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?

What number when divided in half becomes zero?

We are a group of eight brothers. We consider the weak, yet we protect the king in every battle. If we move ahead, we never turn back. Who are we?

I can be cracked, made, told, and played. What am I?