Can you find the company name in the pictogram below?

I have eight fingers and two thumbs but I do not live. What Am I?

A rubber ball keeps on bouncing back to 2/3 of the height from which it is dropped. Can you calculate the fraction of its original height that the ball will bounce after it is dropped and it has bounced four times without any hindrance ?

As you can see that fifteen matches have been used to form an arrangement. What you have to do is remove any six of them to make them ten.

You measure my life in hours
I serve you by expiring
I vanish faster when I am thin
and slower when I am thick
The wind is my energy
What am I?

If 21x = 79x, what is the value of x?

You are playing a game with your friend Jack. There are digits from 1 to 9. You both will take turn erasing one digit and adding it to your score. The first one to score 15 points will win the game.

Would you want to play first or second?

PS: The sum should be exactly 15.

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

This puzzle is for Harry Potter fans. Do you know why Tom Riddle is called Lord Voldemort?

You find yourself in a strange place guarded by two guards.One of the guard always say truth while other always lies.You don't know the identity of the two.You can ask only one question to go out from there. What should you ask?