What is so fragile that saying its name breaks it?

What do you think with the below Picture ?

The product of three consecutive numbers is 7980.
Then the sum of these consecutive numbers would be?

Find the next number in the series below

21 32 54 87 131 ?

John is selling fruits.
He sells grapes at $30, Dates $25, and a Wolfberry $45.
At what price does he sell fig?

PS: Logical Thinking

A rubber ball keeps on bouncing back to 2/3 of the height from which it is dropped. Can you calculate the fraction of its original height that the ball will bounce after it is dropped and it has bounced four times without any hindrance ?

How old is your son? asked a man to his neighbour. My son is five times as old as my daughter and my wife is five times as old as my son. I am twice as old as my wife whereas my grandmother, who is celebrating her eighty-first birthday is as old as all of us put together.

How old is the man's son ?

Find the hidden panda in the image below.

How can you leave a room with two legs and return with six legs?

I have teeth but i don't bite. Who Am I ?