What does below rebus means ?

I am not a bull but I have horns.
I am not an ass but I have a pack saddle.
Wherever I go, I leave silver behind me.

Who am I?

It is a six-letter word.
The first four letters are me.
The second and last letters are the same.
The fourth second and last letter is payment.

Who is it?

There was a blind man. He had four socks in his drawer either black or white. He opened it and took out two socks. Now the probability that it was a pair of white socks is 1/2.

Can you find out the probability that he had taken out a pair of black socks ?

Can you find the missing piece of the Porsche?

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

This was asked in an interview with Coa-Cola.

The interviewer has given me 100 marbles(50 white and 50 black) and two empty boxes.
He then told me that he will leave the room and i need to place all the marbles in two boxes.

And When he come back, he will draw a marble from any of the two box and if the marble is white I will be hired.

Also
* No box can be empty.
* All 100 marbles must be placed in one of the two boxes.

So what should I have done?

A seven-year-old kid challenged his classmates that he can make the number one disappear by adding something to it.

How can he do that?

Do you know who was buried in John's tomb?

By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.