what does the below rebus means?

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?

There was a blind man. He had four socks in his drawer either black or white. He opened it and took out two socks. Now the probability that it was a pair of white socks is 1/2.

Can you find out the probability that he had taken out a pair of black socks ?

Why are all black people so quick ?

What has a ring but no finger?

When can we add 2 to 11 and get 1 as the correct answer?

I look at you, you look at me I raise my right, you raise your left. What am I?

I have one of the three numbers: 1, 2, or 3 in my mind. I speak only truth. You can ask me just one question for which I will only reply in yes or no or don't know. What question will you ask from me so that you are able to know the number?

You need to cut a round cake into eight equal pieces with just 3 cuts. Can you do it?

A car meter reading shows 72927 miles a palindromic number.
what is the minimum number of miles you would need to travel to see another palindromic number on the car meter reading?