You want to boil a two-minute egg. If you only have a three-minute timer (hourglass), a four-minute timer and a five-minute timer, how can you boil the egg for only two minutes?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

In the image given, you can find several triangles. Can you count them all?

It is deaf, Dumb and Blind!!!

Still, always tells the truth. What is it?

Can you find a number that lies one third of the distance between 1/3 and 2/3?

Find the next number in the following series:
6, 14, 26, 98, __?

A thief enters a store and threatens the clerk, forcing her to open the safe. The clerk says, “The code for the safe is different every day, and if you hurt me you’ll never get the code.” But the thief manages to guess the code on his own. How did he do it?

I am lying and I always lie. Tell me whether I am lying or telling the truth.

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

Do you know of a place where the wind blows south and then suddenly shifts direction towards the north?