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.

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

My cousin lives in one story house in Antarctica. His house is made the of-of sandstone. what is the color of stairs?

An express train takes 3 seconds to enter the tunnel which is 1 km long.
If it is travelling at 120 km an hour, how long will it take to pass completely through the tunnel?

A man stands on one side of a river, his dog on the other. The man calls his dog, who immediately crosses the river without getting wet and without using a bridge or a boat. How did the dog do it?

Which five letter word can be added at the end of below word to form a
valid word?

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What can go up a chimney down, but can’t go down a chimney up?

Samuel was out for a walk when it started to rain. He did not have an umbrella and he wasn't wearing a hat. His clothes were soaked, yet not a single hair on his head got wet. How could this happen?

I look at you, you look at me I raise my right, you raise your left. What am I?

What begins with T, ends with T, and has T in it?