One absent-minded ancient philosopher forgot to wind up his only clock in the house. He had no radio, TV, telephone, internet, or any other means for telling time. So he travelled on foot to his friend's place a few miles down the straight desert road. He stayed at his friend's house for the night and when he came back home, he knew how to set his clock. How did he know?

A seven-year-old kid challenged his classmates that he can make the number one disappear by adding something to it.

How can he do that?

If six children and two dogs were under an umbrella, how come none of them got wet?

Count the number of balls in picture below:

You are provided with a grid (as shown in the picture). Can you fill the squares with numbers 1-8 in a manner that none of the two consecutive numbers are placed next to each other in any direction (vertically, horizontally or diagonally?)

I cry without having a voice.
I fly without having wings.
I bite without having teeth.
I whisper without a mouth.

Who am I?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

What is the below Rebus indicate?

Baseball bat and ball cost $100. If the bat cost $99 more than the ball, what is the cost of each?

How many triangles are there in the picture below?