Find The Odd One Out

1. FLOW
2. SNIP
3. TRAP
4. DRAW
5. BACK

10 people came into a hotel with 9 rooms and each guest wanted his own room. The bellboy solved this problem.
He asked the tenth guest to wait for a little with the first guest in room number 1. So in the first room, there were two people. The bellboy took the third guest to room number 2, the fourth to number 3, ..., and the ninth guest to room number 8. Then he returned to room number 1 and took the tenth guest to room number 9, still vacant.
How can everybody have his own room?

Consider all the numbers between 1 and 1 million. Among all these numbers, there is something very special about the number 8 and the number 2202. What is it?

Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT

Can you name any English verb that becomes its past tense by simply rearranging the alphabets ?

Find the missing number in the sequence below:

Can you think of any three-dimensional shape that comprises of exactly two surfaces?

Replace the question mark with the correct number.

2 + 2= 4
3 + 3= 18
4 + 4= 48
5 + 5= ?

What is black when you buy it, red when you use it, and gray when you throw it away?

I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?