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?

Can you find the ages of a son, father and grandfather based on the following facts?
The sum of the ages of grandfather, father and son is 140 years.
The age of the son in months is the same as the grandfather in years.
The age of the son in days is the same as the father in weeks.

Find the Next Number in the Sequence

2 9 3 1 8 4 3 6 5 7 ?

Using Only Five 5's and any mathematical operator make sum as 37

Buy me, smell me or deliver me, I do not change.

Who am I?

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

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

There are seven sisters in a house in a village where there is no electricity or any gadget.

Sister-1: Reading Novel
Sister-2: Cooking
Sister-3: Playing Chess
Sister-4: Playing Sudoku
Sister-5: Washing clothes
Sister-6: Gardening

what is Sister-7 doing ?

What has many keys but can’t open a single lock?

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