using four eights (8) and a one (1) and one mathematical symbol , create the number 100

Find The Next Number in this series.
1, 2, 6, 42, 1806 ?

As we know that white starts the game of chess. Can you find the scenario shown in the picture below is possible when all the white pieces are at the original place while the black pawn is not as in the below picture?

What does below pictogram mean?

Can you solve this picture maths equation?

What Deficiency does the below rebus represent?

VIT_MIN

There are people and strange monkeys on this island, and you can not tell who is who (Edit: until you understand what they said - see below). They speak either only the truth or only lies.
Who are the following two guys?
A: B is a lying monkey. I am human.
B: A is telling the truth.

Solve the below puzzle by replacing the question mark with the correct number.

3 6 12

4 8 16

5 10 ?

In the picture given below, can you find out which digit will take place of the question mark?

What jumps when it walks and sits when it stands?