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

A mother bought three dress for her triplets daughters(one for each) and put the dresses in the dark. One by one the girls come and pick a dress.
What is the probability that no girl will choose her own dress?

Complete the following series. It.s very logical:

1, 4, 5, 6, 7, 9, 11, __?

Can you find the 09 errors in the picture below?

Which of the following words don't belong in the group and why?
CORSET, COSTER, SECTOR, ESCORT, COURTS

You need to arrange three 7 and mathematical symbols to form number 1?

John and Jenni are a married couple. They have two kids, one of them is a girl. Assume safely that the probability of each gender is 1/2.
What is the probability that the other kid is also a girl?

Hint: It is not 1/2 as you would first think.

Solve The below Equation:

ALFA + BETA + GAMA = DELTA

I live in a bowl. I can swim. I have a tail. I also have fins and big eyes. What am I?

How many people must be gathered together in a room, before you can be certain that there is a greater than 50/50 chance that at least two of them have the same birthday?