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

what does this below rebus represent identXQQQQQME

Arrange the numbers 1, 2, 3, 4, 5, 6, 7, 8 and 9 above and below the division line in a manner that the thus formed fractions equal to 1/3.

(You can use one number only once)

Solve below popular number sequence
314 159 265 358 979 323 846 ?

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.

Can you find the odd number in the following?

2716, 4135, 5321 and 7145

Below is the sum of symbols in each row and column in the figure. Analyzing the figure, can you find out the value of the symbols?

On rolling two dices (six-sided normal dice) together, what is the probability that the first one comes up with a 2 and the second one comes up with a 5?

The answer I give is yes, but what I mean is no. What was the question?

2, 3, 5, 9, 17, _ What is the next number in the sequence?