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 ?

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

What has a bottom at the top?

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

Using mathematical symbols like +, -, and x in order to make the equations correct. Replace # with the above-given symbols.

9 # 8 # 7 # 6 # 5 # 4 = 91

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

You are given four results as below:
1111 = F
2222 = E
3333 = T
Then, can you find out how to code 4444?

If a shopkeeper can only place the weights on one side of the common balance. For example, if he has weights 1 and 3 then he can measure 1, 3 and 4 only. Now the question is how many minimum weights and names of the weights you will need to measure all weights from 1 to 1000? This is a fairly simple problem and very easy to prove also.

Most people think of me as money. But when they find me in the water, they won’t get any money out of me. What am I?

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