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

Can you solve the below algebraic mathematical equation?

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

A person was found dead on a big green land with no trees or buildings around. When the police arrived, they found a piece of rock lying next to him and the man was wearing clothes comprising of red, blue and yellow colours.

Can you tell who the person is and what was the cause of death?

Which word is least like the others? Third, fourth, fifth, sixth, seventh, eighth, ninth?

Find the missing number in the image below.

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

It is deaf, Dumb and Blind!!!

Still, always tells the truth. What is it?

It's pretty hard to give up.
If you remove a part of it, you will be left with a bit.
Even if you remove another part, the bit still remains.
Remove one more and it still remains.

What is it?

We have four gears with below features=> Both Gear A and D has 60 teeth=> Gear B has 40 teeth=> Gear C has 20 teeth=> Every two minutes, Gear B makes 25 full turns.What is the relative speed of Gear A and Gear B?

If eleven plus two equals one, what does nine plus five equal?