A sea diver is a real show-off. He showed everyone that he can hold his breath underwater for 15 minutes.

I went to the diver and told him that I can be underwater for double the time i.e 30 minutes.
He responded that he will give me 100$ if I would be able to do it. I won 100$.

What did I do?

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

Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

I inserted a coin in a bottle and closed its mouth with the help of a cork. Now, I was able to take the coin out from the bottle without taking out the cork or breaking the bottle. Can you tell me how I did it?

Can you count the number of squares in the figure below?

You have a 12 liters jug full of water. You have two empty 8 liters and 5 liters jug. How can you divide the water into two equal parts using these jugs?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

A patient was diagnosed with some ailment. He was given five different tablets to take at night at an interval of 15 minutes.

How long will it take the patient to consume all the five tablets?

Can you find out which number multiplied by itself will give the output as 12345678987654321?