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

A Child was born in Lahore, Pakistan.

Still child is not a Pakistani citizen.why ?

What comes
Once in a Year
Twice in a Month
4 times in a Week
6 times in a Day

Two in a corner, one in a room, zero in a house, but one in a shelter. What is it?

I make two people out of one. What am I?

Be active and find the killer in the picture Riddle below.

There were three women in all the swimming costumes!
One was happy and the other two were sad!
The happy one was crying and the sad ones were smiling.
Why was this?

What does this rebus mean?

O
N
C
E
TIME

How many pluses should we put between the digits of 987654321 to get a total of 99, and where?

Two old friends, Jack and Jill, meet after a long time, and discussing as:

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?