Answer to:
Is a "double bounce" serve on the receiver side considered a point for the server or for the receiver? Obviously the double bounce on the receiver end is a point to the server. Because the rule is that both the players has to take or hit the ball immediately after the first pitch of the ball on the table, so it serves the answer to this question am i right?

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Is there a standard green color for Ping Pong tables? If so, what is that color? Can I buy paint to touch up my table? There is nothing called standard colour for a table tennis table, it comes in two different colours usually and the colours are blue and green. I feel both the colours are good and if we go for someother colour it will spoil the board appearence. But the conclusion is there is no standard colour for a ping-pong table.

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Do ping-pong balls really explode when heated? A ping-pong ball will explode when it is heated because of the more heat the inside air will be more pressurised and that air will try to find a place to come out and there is only one way to come out is nothing but explosion and the ball will obviously break out. "And also one important thing that has to be considered in this ball is,ping-pong ball is also partially made of camphor powder...

Answer to:
What is the average lifespan of a ping-pong ball? There is a life span for a ping-pong ball, but I have never waited till the life span that ball. Because usually we play with that ball immediately after the purchase of the ball and the normal ball will last for at least for 20 to 30 days if you are a regular player. Otherwise that will long last for more than a year.