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.

It belongs to you, but other people use it more than you do. What is it?

There is a brick of gold and a brick of iron in a boat (both 10-inch blocks), if they are both dropped into the water which will make the water level higher?

I sleep during the day and fly at night, but I have no feathers to aid my flight. What am I?

John has played 50 ODI's and his average is 50. How many runs should he score in his 51st ODI, so that his average score jumps to 51?

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

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

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

What does below Rebus mean ?

esgg sgeg gegs gsge

I can be cracked, made, told, and played. What am I?