If a shopkeeper can only place the weights on one side of the common balance. For example, if he has weights 1 and 3 then he can measure 1, 3 and 4 only. Now the question is how many minimum weights and names of the weights you will need to measure all weights from 1 to 1000? This is a fairly simple problem and very easy to prove also.

Count the number of triangles in the below picture?

Joseph buys three kinds of chocolates for 100 rupees. The first one is priced at 5 rupees, second one at 3 rupees and third one at 0.5 rupees.

If he bought 100 chocolates in total, how many pieces do you think he bought each chocolate?

A train leaves from point A for point B at 80 mph. After half an hour, another train leaves from point B for point A at 60 mph.

Which of the trains will be farther from point A when they meet ?

A man dies of old age on his 25 birthday. How is this possible?

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

John killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

What two things can you never eat for breakfast?

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