Can you solve the below algebraic mathematical equation?

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

Why do Chinese men eat more rice than Japanese men do ?

What is always in front of you but can’t be seen?

On her drawing table, Sayna lit 12 coloured candles. A few seconds later she blew two candles off.

How many candles Sayna have at the end?

A beggar on the street can make one cigarette out of every 6 cigarette butts he finds. After one whole day of searching and checking public ashtrays the beggar finds a total of 72 cigarette butts. How many cigarettes can he make and smoke from the butts he found?

John was piloting a plane behind a car but was never able to overtake it. Why?

An evil man kidnapped someone and made them take one of two pills. One was harmless, but the other was poisonous. Whichever pill the victim took, the kidnapper took the other one. The victim took their pill with water and died. The kidnapper survived. How did the kidnapper get the harmless pill?

If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?

In the picture, you can see a chess board. On the top left position, the K marks a knight. Now, can you move the knight in a manner that after 63 moves, the knight has been placed at all the squares exactly once excluding the starting square?

You see me once in June, twice in November, and not at all in May. What am I?