Which alphabet letter is a question?

What do you call a fish without an eye?

How can you make a TV, a bed, a dog, and a car liquid?

What has a ring but no finger?

Cristina leaves home and then she makes exactly 3 left turns and returns home where she found 2 girls wearing the mask.

Who are these two masked girls?

What has no start, end, or centre?

What is 3/7 chicken, 2/3 cat and 2/4 goat?

Different lights make me strange by changing me into different sizes. What am I?

Before reading ahead, you must know the fact that only one of the people here is telling the truth.

A says that B is lying.
B says that C is lying.
C says both A and B are lying.

Can you find out who is speaking the truth?

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?