It belongs to you, but other people use it more than you do. What is it?

The below given figure comprises of a pattern through which you can determine the missing letter. Can you push your mind to find the pattern and add the missing letter?

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

A man is shown a portrait painting. He looks closely, then tells, “Brothers and sisters have I none, but that man’s father is my father’s son!” Who is the man in the portrait?

My sock drawer has 26 blue socks, 13 pink socks, 33 green socks, and 12 red socks, how many socks would I have to pull out in the dark to be sure I had a matching pair?

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

How can you take 2 from 5 and leave 4?

Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C

Why is a river so rich ?

A sea diver is a real show-off. He showed everyone that he can hold his breath underwater for 15 minutes.

I went to the diver and told him that I can be underwater for double the time i.e 30 minutes.
He responded that he will give me 100$ if I would be able to do it. I won 100$.

What did I do?