I am under you when I am whole.
I shift above you if you remove the first letter.
I come all around you if you remove the second as well.

Can you tell me who I am?

How can you write nineteen in a manner that if we take out one, it becomes twenty?

A seven-year-old kid challenged his classmates that he can make the number one disappear by adding something to it.

How can he do that?

Identify the 10 differences between the two given pictures.

Make a sentence consisting of three words that have the whole alphabet.

our enemy challenges you to play Russian Roulette with a 6-cylinder pistol (meaning it has room for 6 bullets). He puts 2 bullets into the gun in consecutive slots, and leaves the next four slots blank. He spins the barrel and hands you the gun. You point the gun at yourself and pull the trigger. It doesn't go off. Your enemy tells you that you need to pull the trigger one more time, and that you can choose to either spin the barrel at random, or not, before pulling the trigger again. Spinning the barrel will position the barrel in a random position.

Assuming you'd like to live, should you spin the barrel or not before pulling the trigger again?

Can you find out the missing number in the grid?

A bank customer had $100 in his account. He then made 6 withdrawals. He kept a record of these withdrawals, and the balance remaining in the account, as follows:

Withdrawals Balance left
$50 $50
$25 $25
$10 $15
$8 $7
$5 $2
$2 $0
----- -----
$100 $99

Why are the Totals not tallying?

Here is a mathematical expression that also secretly tells a movie name. What movie is that?

Paul's height is six feet, he's an assistant at a butcher's shop and wears size 9 shoes. What does he weigh?