What has many keys but can’t open a single lock?

Only one colour, but not one size,
Stuck at the bottom, yet easily flies.
Present in sun, but not in rain,
Doing no harm, and feeling no pain.
What is it?

Two fathers and two sons went fishing one day. They were there the whole day and only caught 3 fish. One father said, that is enough for all of us, we will have one each. How can this be possible?

What does this rebus means ?

PROG WORKRESS

In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?

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

Spot what is wrong here in below Picture?

A man embarked on a questionnaire game. He kept asking the same question to whomever he found. The answer each time was different.

Can you guess what the question was?

If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

If you were to put a coin into an empty bottle and then insert a cork into the neck, how could you remove the coin without taking out the cork or breaking the bottle?