Complete the following series. It.s very logical:

1, 4, 5, 6, 7, 9, 11, __?

You along with your friend are standing in front of two houses. Each of those houses inhabits a family with two children.

Your friend tells you the below two facts:
1) On your left is a family that has a boy who likes accounts but the other child loves science.
2) On the right is a family with a seven-year-old boy and a newborn baby.

You ask him, "Does either of the family have a girl?"

To this, he replies, "I am not quite sure. But can you guess that? If you are right, I will give you $500."

Which family do you think is likely to have a girl?

If I put in one bird per cage, I have one bird too many. If I put in two bird per cage, I have one cage too many. How many cages and birds do I have?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

In the Chess Board picture below white army is arranged. You need to add a black army on the board such that no piece is under any threat.
Note: Army comprised of 1 king, 1 queen, 2 rooks, 2 bishops, 2 knights, and 8 pawns.

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

Find the next number in the sequence

1, 2, 6, 21, 88, __?

Find the next number in the series below

21 32 54 87 131 ?

What Time Should the last watch show in the below figure?