What is greater than gold but cannot be bought. it can never be sold and can earn if its sought. though it can be broken, it can still be fixed. for by birth it can't start nor by death it is ended.what am i?

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?

This puzzle is for Harry Potter fans. Do you know why Tom Riddle is called Lord Voldemort?

It has horns but can’t beep. It is like to bleat but It is not a sheep. What is it?

What is red and smells like blue paint?

What has one eye, but can’t see?

It's a 7-letter word.
If we remove 1 letter from it, it remains the same.
If we remove 2 letters from it, it remains the same.
If we remove 3 letters from it, it remains the same.
If we remove all the letters from it, still it remains the same.
What is it?

Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT

Why is 6 afraid of 7?

What does the below mathematical rebus mean?