Which Number is the odd one out?

A) 7145
B) 2716
C) 5321
D) 4135

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?

A detective visits his friend John just to discover that John's neighbour Dr Jacob was murdered. Dr Jacob, who is a mathematician wrote the murderer's name in a code word "Hcqtfz". There were five suspects
1. Ajit
2. Pankaj
3. Ganpat
4. Deenu
5. Hariya

The Detective was instantly able to find the murderer.
Can you?

I am a white box having no key or lid.
Yet there is a golden treasure inside it.

What Am I?

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

Replace the question mark with the number below given a simple math problem.

I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?

Decode this picture on T-Shirt and tell what it says ?

How can you tell a raw egg from a hard-boiled egg?

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.