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

Vin Diesel is pulling a theft and has planned to run away with all the cash kept in the safe. But the only way to open the safe is the 13 character password. He has a set of five clues given to him by a trustworthy source.

Exactly two of the below statements are false.
The password is contained within this sentence.
The password is not in this hint.
The password is within only one of these statements.
At least one of the above statements is a lie.

The picture shows the dice results in each couple of throws. If they are actually following a pattern, can you find out the missing one?

If,

A + B = C
D - C = A
E - B = C

Based on the above equations, find out the answer for:

D + F = ?

A girl says this to her best friend: “I was born in 1955, and I celebrated my 17th birthday last weekend.” Her best friend thinks she’s lying, but she’s actually correct. How is that possible?

Transform the word THINK into BRAIN while changing only one letter at a time in a manner that each of the word in the process is a real word!!!

What is always in front of you but can’t be seen?

Find the number of squares in the below picture

What is full of holes but still holds water?

Look at this sequence from top to bottom. What is the next number in the sequence?
1
11
21
1211
111221
312211