A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

John and his team plan to rob a safe. They got just one chance to break the code else the local police will be informed. Below are clues:
A) Exactly one number is perfectly placed: 9 8 1
B) Everything is incorrect: 9 2 4
C) Two numbers are part of the code of the safe but are wrongly placed: 0 9 3
D) One number is part of the code of the safe but is wrongly placed: 1 4 7
E) One number is part of the code of the safe but is wrongly placed: 7 8 3

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

In a chess board, the queen piece can move horizontally, vertically and diagonally freely. The picture represents the same.Can you place 8 queens on the board in a manner that none of the queens can attack each other?

Replace the question mark with the correct number, given the pair of numbers exhibits a similar relationship?

? : 3839 :: 11 : 1209

What number do you get when you multiply all of the numbers on a telephone's number pad?

Two boys wish to cross a river. The only way to get to the other side is by boat, but that boat can only take one boy at a time. The boat cannot return on its own, there are no ropes or similar tricks, yet both boys manage to cross using the boat.

How?

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

What do you see in the image below

A finger goes in me. You fiddle with me when you're bored. The best man always has me first. What am I?