They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

If an electric train is travelling south, then which way is the smoke going?

What you cannot hold but it is yours?

Seven Robbers robbed a bank and hide the coins in a lonely place.
They decide to divide the money equally the next morning. Two greedy robbers decided to cheat the others and reach the place at night. They equally divided the coins between them, one coin left. So they called another robber and then they decided to divide equally among the three. Sadly again one coin left. The same thing happened to the 4th 5th and the 6th robber.
However, when the 7th robber reached in the morning, they can divide the coins equally.

How many coins were there in total?

In four steps you need to move the word 'cold' From 'warm' by replacing one alphabet at a time such that every word formed at each step is acceptable in English Dictionary.

Which is the correct shadow of the bird?

When I go in I might cause pain. I cause you to spit and ask you not to swallow. I can fill your hole. What am I?

I look flat, but I am deep. Hidden realms I shelter. Lives I take, but the food I offer. At times I am beautiful. I can be calm, angry, and turbulent. I have no heart but offer pleasure as well as death. No man can own me, yet I encompass what all men must have. What am I?

I have an eye but still cannot see.

Who am I?

The more you take me, the more you leave me behind.
Who Am I?