Which tank will fill first?

I have teeth but i don't bite. Who Am I ?

John said, "If yesterday was tomorrow, today would be Friday."

When did John make this statement?

On one occasion, A Boy collects 71 rupees in form of 20 paise and 25 paise. He collects a total of 324 coins.

Can you tell me how many 20-paisa and 25-paisa he got?

Which is the rope you never skip with?

You have two strings whose only known property is that when you light one end of either string it takes exactly one hour to burn. The rate at which the strings will burn is completely random and each string is different. How do you measure 45 minutes?

I cry without having a voice.
I fly without having wings.
I bite without having teeth.
I whisper without a mouth.

Who am I?

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?

I shave every day, but my beard stays the same. What am I?

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?