What does this mathematical rebus means ?

You are on a Boat in the mid of a river. You have two cigarettes with you. One of these two you have to light, how will you light the cigarette?

This is a picture puzzle. You have to guess the name of the movie that can be related to the picture.

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

If you’ve got me, you want to share me; if you share me, you haven’t kept me. What am I?

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?

You are mixing a mixture of cement and Sand with five gallons of water. You have a garden hose giving you all the water you need. The problem is that you only have a four-gallon bucket and a seven-gallon bucket and neither has graduation marks. Find a method to measure five gallons.

Only one colour, but not one size,
Stuck at the bottom, yet easily flies.
Present in sun, but not in rain,
Doing no harm, and feeling no pain.
What is it?

What does below pictogram mean?

A father's child, a mother's child, yet no one's son.

Who am I?