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.

What month of the year has 28 days?

A man hijacks an aeroplane transporting both passengers(8 of them) and valuable cargo. After taking the cargo, the man demands nine parachutes, puts one of them on, and jumps, leaving the other eight behind. Why did he want eight?

There once were seven dwarfs who were all brothers. They were all born two years apart. The youngest dwarf is seven years old. How old is his oldest brother?

I came first on earth but second on the heaven.
I also came twice in a week but found just once in a year.
I stay away from months but you can find me in February.

What am I?

Find the next number in the sequence

5 12 24 36 ?

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

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98

What is the coolest letter in the alphabet?

Most people think of me as money. But when they find me in the water, they won’t get any money out of me. What am I?