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

What is the next number in this series?

4,12,84,3612....

Which is Odd One Out and why?

4377

3954

9862

8454

9831

John was driving a bus and got stuck when passing through an underpass. Then came Jacob with a needle and got the bus out of the underpass.

What did the boy do?

An exterior architect is asked by a builder to plant seven trees in a manner that there are exactly six rows of trees in a straight line and each row has three trees in particular.

How will he do it?

You knock a Table over in the library, and suddenly 20 eyes are looking at you.

P is the father of Q and S is the son of R. T is the brother of P and has a daughter U. If R is the sister of P, then what is the relation between U, Q and S?

Prove that twice of ten is the same as twice of eleven.

I have one of the three numbers: 1, 2, or 3 in my mind. I speak only truth. You can ask me just one question for which I will only reply in yes or no or don't know. What question will you ask from me so that you are able to know the number?

Solve the rebus riddle in the picture below.