How many triangles are there on the puzzle below?

A lion and its tamer are standing inside a cage that measures 1 unit in radius. Both of them can effortlessly run at the speed of 1 unit maximum.

1) Suppose the lion is hungry, will he be able to eat up the tamer?
2) If yes, how long can the tamer survive?

Can you make four (4) nines (9) equal 100?

The barber of Town shaves all men living in the town. No man living in the town is allowed to shave himself. The barber lives in that town. Who then shaves the barber of the town?

You have two buckets of 11 liters and 6 litres.
How can you measure exactly 8 litres?

What is the centre of gravity?

In the four images below, can you find the odd one out?

How many letters are in the alphabet?

If six children and two dogs were under an umbrella, how come none of them got wet?

What's a single-digit number with no value?