Can you count the number of quadrilaterals in the picture below?

What does this rebus riddle mean?

I look flat, but I am deep. Hidden realms I shelter. Lives I take, but the food I offer. At times I am beautiful. I can be calm, angry, and turbulent. I have no heart but offer pleasure as well as death. No man can own me, yet I encompass what all men must have. What am I?

Solve below popular number sequence
314 159 265 358 979 323 846 ?

What does below pictogram mean?

You need to climb ten stairs. At every stair, you can either take one step up or you can jump two steps up.

In how many different ways you can climb 10 stairs?

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

Do you know of a place where the wind blows south and then suddenly shifts direction towards the north?

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

Two fathers and two sons decided to go to a shop and buy some sweets upon reaching. Each of them bought 1 kg of sweet. All of them returned home after some time and found out that they had 3kg of sweets with them.

They did not eat the sweets in the way, nor threw or lose anything. Then, how can this be possible?