If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10

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 ?

I am the first thing you need while camping.
I am always with the person named Marcos Valencia and Carrick.
But Pogba Zlatan and Rooney think I am wasteful and do not need me.
I am the second to the last thing to add when you are making a patch.

What am I?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

A patient was diagnosed with some ailment. He was given five different tablets to take at night at an interval of 15 minutes.

How long will it take the patient to consume all the five tablets?

Which number comes next in the number series?

2, 9, 30, 93, ?

Can you decipher the below rebus?

PBLUESAISNUERSES

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.