How can you make number one disappear by adding something to it?

What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?

You can hear me, but you can't touch or see me.

What am I?

What kind of band never plays music?

Can you solve the below algebraic mathematical equation?

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

What am I?

He does not have any heart but still, He manages to live.
If you kill him, you will eventually die but yet you kill him.
He cannot run, who is He?

Bay of Bengal is in which state?

It is deaf, Dumb and Blind!!!

Still, always tells the truth. What is it?

If a wheel has 54 spokes, how many spaces are there between the spokes?