I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

No one wants to have it, but if one got it, he does not want to lose it. What is It?

Two guards were on duty outside a barracks. One faced up the road to watch for anyone approaching from the North. The other looked down the road to see if anyone approached from the South. Suddenly one of them said to the other, "Why are you smiling?"

How did he know his companion was smiling?

Prove that the below maths equation is true.

8 + 8 = 91

There is a box. The area of its top is 240 square units, the area of the front is 300 square units and the area of the end is 180 square units.

Can you calculate the dimensions of this box with the given data?

Replace the question mark with the correct number.

What is the word or phrase?

You are confined in a room and given two metal rods. Out of these two rods, one is magnet and the other is the iron rod. They look starkly similar. You don't have any other metal object in the room.

How will you decide which one of those is magnet?

Can you find out which options fits best with the missing column?

It's a protector.
It sits on a bridge.
One individual can see directly through it, while others wonder what it hides.

What is it?