You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

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

O T T F F S S ?

My thunder comes before the lightning; my lightning comes before clouds; my rain dries all the land it touches. What am I?

If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?

Replace the 'X' with any mathematical symbol to make the expression equal to 111.

18 X 12 X 2 X 3 = 111

Astrology starts with the alphabet A, Biology starts with B, Psychology with P and Limnology with L.

Can you find an "ology" that begins with a P?

On a charity event in Russia, Murray beat Djokovic by winning six games and losing three games.
Note: There is a total of 5 service breaks(one who serve lost the game).
Who served first, Djokovic or Murray?

Okay before we begin with the puzzle, do keep in mind that you have to answer it quickly.

You are participating in a car race. Seeking the perfect moment, you overtake the second person in the race. What positions are you in now?

Can you decipher the below rebus?

PBLUESAISNUERSES

In an interview, a boy was asked an unusual question 'How two persons sitting with a table in between them can't see each other?' He was unable to reply. Can you?