What does below rebus means ?

In my garden, I have many trees but only one of them is the mango tree. In these mango trees, there are some mangoes(as expected).

But after a strong wind, there are neither mangoes on the tree nor on the ground. Explain?

10+10 and 11+11 can give you the same answer.

Explain how?

What is greater than gold but cannot be bought. it can never be sold and can earn if its sought. though it can be broken, it can still be fixed. for by birth it can't start nor by death it is ended.what am i?

What is the next number in this matchsticks series riddle?

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

I am never scared but became petrified and can’t live in a house but would die to make one. What am I?

John speaks the truth only once a day in a week. Below are a few hints for you:

First: Days are Sunday, Monday and so on.
Second: One day he says, "I lie on Monday and Tuesday".
Third: On the next day, he says, "Today is either Thursday, Saturday or Sunday".
Fourth: On the next day, he says, "I lie on Wednesday and Friday".

Can you identify the day on which he speaks the truth?

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

What is the Surname of Barbie Doll?