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

Why Aeroplane windows are round?

Can anyone tell me a word in the English dictionary which has a silent 'z'?

Count the number of triangles in the picture below:

What part of Turkey has the most feathers?

Twenty frogs are sitting on a log floating on the surface of a river. Two of them decide to jump off into the water.

How many frogs are there on the log at this moment?

Today is John's birthday.
A year ago, John had five candles and he lit all the candles except the one at the last.
Now he is going to light all the candles.

How old is John Today?

(He is not five today.....)

A clock loses 10 minutes each hour. If the clock is set correctly at noon, what time is it when it reads 3 PM?

Solve the puzzle by telling what does below picture means.

There are 20 people in an empty, square room. Each person has full sight of the entire room and everyone in it without turning his head or body, or moving in any way (other than the eyes). Where can you place an apple so that all but one person can see it?