There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

From a pack of 52 cards, I placed 4 cards on the table.

I will give you 4 clues about the cards:

Clue 1: Card on left cannot be greater than the card on the right.
Clue 2: Difference between the 1st card and 3rd card is 8.
Clue 3: There is no card of an ace.
Clue 4: There are no face cards (queen, king, jacks).
Clue 5: Difference between the 2nd card and 4th card is 7.

Identify four cards?

I am lying and I always lie. Tell me whether I am lying or telling the truth.

Only one colour, but not one size,
Stuck at the bottom, yet easily flies.
Present in sun, but not in rain,
Doing no harm, and feeling no pain.
What is it?

Prove that the below maths equation is true.

8 + 8 = 91

Why do we preferably have round manhole covers and not square ones?

I have feet, but no legs. Which animal Am I?

You can see it everyday, But cannot touch it at will. What is it?