When we see 2 but call 10?

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

Make eight squares by moving only two matchsticks.
Note- Square can be of different sizes.

Why Aeroplane windows are round?

My thunder comes before lightning.
My lightning comes before my rain.
My rain dries up all the land it touches.

Who am I?

A guy in his thirties is found dead in a forest. The shocking thing about the body is that he is wearing his swimming trunks snorkel and a facemask.

For your information, the nearest lake is some 10 miles away and the sea is hundreds of miles away.

How did he die then?

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?

I had an infinite supply of water and 5 litres and 3 litres jars.

How would you measure exactly 4 litres in the least number of steps?

A patient was diagnosed with some ailment. He was given five different tablets to take at night at an interval of 15 minutes.

How long will it take the patient to consume all the five tablets?

Yesterday I fell from 30 feet high ladder but I don't get hurt. Why?