In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

A famous swimmer can swim downstream in a lake in exactly 40 minutes with the lake current.
He can swim upstream in that lake in exactly 60 minutes against the lake current.
The length of the lake is 2 km.

How long he can cover the distance of one side at a still lake with no current?

Find The Next Number in the series:

12 13 15 17 111 113 117 119 123 ?

Jenifer is learning to drive her car. She went down a one way lane and in the wrong direction. But she do not break any law.

How come ?

1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10

What animal walks on four legs in the morning, two legs during the day, and three legs in the evening?

Oedipus, the king of Thebes, figured out the answer to the riddle:

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

Speaking of rivers, a man calls his dog from the opposite side of the river. The dog crosses the river without getting wet, and without using a bridge or boat. How?

Find the next number in the following series:
6, 14, 26, 98, __?