What is black when you buy it, red when you use it, and gray when you throw it away?

If Rajina's daughter is my daughter's mom, who am I to Rajina?

What kind of band never plays music?

I have a mouth but I don't eat.
I have a bank but have no money.
I have a bed but i dont sleep.
I wave but have no hands.

Who Am I ?

A deaf and mute man goes to the train station. Tickets for the train are 50 cents each. The man goes to the ticket booth and hands the man inside just a dollar. The man in the booth hands him two tickets.

How did the man in the booth know to give him two tickets without even looking at him?

The first two letters signify a male, the first three letters signify a female, the first four letters signify a great, while the entire world signifies a great woman. What is the word?

The centre of the third figure is empty. What digit should fit inside?

Trying to tease Birbal, Akbar gave him one gold coin and ask him to buy
* something for him to eat
* something for him to drink.
* something to feed the cows
* something to plant in the garden
and most important you need to buy only one thing.

What must Birbal buy to silence Akbar?

By using 'because' continuously three times, can you make an English statement ?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?