Can you solve the below algebraic mathematical equation?

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

Can you name four days which start with the letter 'T'?

I can write cow in 13 letters.

Can You?

There are forty elephants and they have forty-fore heads. How can this be possible?

Do you know who was buried in John's tomb?

A seven-year-old kid challenged his classmates that he can make the number one disappear by adding something to it.

How can he do that?

Decode this picture on T-Shirt and tell what it says ?

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?

What begins with T, ends with T, and has T in it?

Through your logical capabilities, can you make 7 an even?