Can you convert the number zero(0) into a positive number using just one mathematical operator ?

Find the number of squares in the below-given picture.

My cousin lives in one story house in Antarctica. His house is made the of-of sandstone. what is the color of stairs?

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?

Every words stands for unique digit that makes the arithmetic equation true

SEVEN + SEVEN + SIX = TWENTY.

What are the digits ?

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 ?

How many letters are in the alphabet?

I have branches, but no fruit, trunk or leaves. What am I?

Two old friends, Jack and Bill, meet after a long time.

Three kids
Jack: Hey, how are you, man?
Bill: Not bad, got married and I have three kids now.
Jack: That's awesome. How old are they?
Bill: The product of their ages is 72 and the sum of their ages is the same as your birth date.
Jack: Cool..But I still don't know.
Bill: My eldest kid just started taking piano lessons.
Jack: Oh, now I get it.

How old are Bill's kids?

What Time Should the last watch show in the below figure?