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 ?

What does below chemistry rebus means?

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

In a science lab, a petri dish hosts a healthy colony of yeast for an experiment. Now every minute, all the yeast cells divide into two. At noon, there was just a single cell of yeast and at 1:22, the Petri dish was half full. Can you calculate when the dish will be full of yeast?

Something Extraordinary happened on May 6th 19778 at 12:34am what was that?

In the picture that is attached with this question, you can find a square which comprises of four little squares inside it. Consider this square to be made with matchsticks. You have to remove two matchsticks such that only two squares remain instead of five.How will you do it ?

With the help clues provided in the image, can you find the 5 digit key?

Once while in his court, King Akbar asked Birbal to write something on a wall that makes one sad when read in good times and makes one happy when read in sad times.

He took only a few moment and wrote something that fit the requirements. What did he write?

Find the number of squares in the below-given picture.

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?