Two friends were betting. One said to the other, "The coin will be flipped twenty times and each time the coin lands on the head, I will give you $2 and each time it lands on the tale, you will give me $3." After flipping the coin twenty times not a single penny was exchanged among them.

How many times did the coin land on heads?

A chess tournament is taking place on knock-out terms (the one who loses the match is out of the game).
(a) If 10 matches are played in total, how many players participated?
(b) If 20 players took part in the tournament, how many matches were played?

You have two rectangular wires.

Both of them have property that when you light the fire from one end , it will take 60 minutes to get completely burn.

However, they do not burn at consistent speed (i.e it might be possible 1st 20% burn in 50 minutes and 80% can burn in 10 minutes).

So how could you measure 45 minutes ?

Cristina was born in 1888. She just had her 30th birthday today how did that happen?

What has no start, end, or centre?

Which is Odd One Out and why?

4377

3954

9862

8454

9831

Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT

A man in a car saw a Golden Door, Silver Door and a Bronze Door. What door did he open first?

I have four wings but can't fly.
I express no emotions.
I am found on the exact spot every time you look.
I keep toiling away with a little sound.

Do you know what am I?

How many words can a quill made with the feather of a pigeon write with a 100ml bottle of black ink?