What is the coolest letter in the alphabet?

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

What work can one never finish?

I am something people love or hate. I change peoples appearances and thoughts. If a person takes care of them self I will go up even higher. To some people I will fool them. To others I am a mystery. Some people might want to try and hide me but I will show. No matter how hard people try I will Never go down. What am I?

What does the below rebus puzzle mean?

Can you count the number of blocks in the picture below?

Jack and Joseph are well-known golf rivals. One Day during a match, they were level at a score of 30. Jack hit a bad shot and Joseph added 10 to his score. Joseph then hit an awesome shot and he won the game.

How ?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

You are stuck on an island where you have nothing. You find four pieces of paper somewhere on the island. What will be your strategy to escape from the island safely?

PS: No other resource is available to you on the island, neither can you build anything.

Prove that twice of ten is the same as twice of eleven.