Look at the picture and find out which square is not linked with any of the other squares.

What's the next in the series?

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

A man is looking at a photograph of someone. His friend asks who it is. The man replies, “Brothers and sisters, I have none. But that man’s father is my father’s son.” Who was in the photograph?

An ape is trying to climb on a pole that is 60 feet high. Due to the slippery surface, the ape climbs 3 feet in a minute only to slip back 2 feet.

How much time do you think the monkey will take to reach the top of the pole?

Can you replace the question mark with the correct number in the below table sequence?

Two in a corner, one in a room, zero in a house, but one in a shelter. What am I?

What brings you down but never up?

The product of three consecutive numbers is 7980.
Then the sum of these consecutive numbers would be?

A boy and a girl are sitting on the porch.
"I'm a boy," says the child with black hair.
"I'm a girl," says the child with red hair.
If at least one of them is lying, who is which?

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?