How many times do a clock's hands overlap in a day ?

What jumps when it walks and sits when it stands?

How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

Can you place six X (crosses) in below board without making three in a row in any way ?

I get hot but I never sweat,
I cook food but I am not a chef,
I have a door but you can't enter me,
I have a light but I am not a lamp.
Who am I?

Today, I celebrated my 32nd birthday but I was born in 1972.
How is this possible?

Can you count the number of lines in the below picture?

Can you find a seven digit number which describes itself. The first digit is the number of zeros in the number. The second digit is the number of ones in the number, etc. For example, in the number 21200, there are 2 zeros, 1 one, 2 twos, 0 threes and 0 fours.

My first is in chocolate but not in ham. My second is in cake and also in jam. My third at tea time is easily found. Altogether, this is a friend who is often around. What is it?