I look at you, you look at me I raise my right, you raise your left. What am I?

What number should come in place of the question mark below?

Solve the puzzle by telling what does below picture means.

A mules travels the same distance daily.
I noticed that two of his legs travels 10km and the remaining two travels 12km.
Obviously two mules legs cannot be a 2km ahead of the other 2.

The mules is perfectly normal. So how come this be true ?

You need to climb ten stairs. At every stair, you can either take one step up or you can jump two steps up.

In how many different ways you can climb 10 stairs?

A kind heart person buy packed food at 3$/packet from United states and sells them at 1$/packet at Africa. After some time he becomes a millionaire.

How come the guy become millionaire ?

Which is Odd One Out and why?

4377

3954

9862

8454

9831

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

I make two people out of one. What am I?

What will you call your mother's brother's brother-in-law?