What is a word made up of 4 letters, yet is also made up of 3. Sometimes is written with 9 letters, and then with 4. Rarely consists of 6, and never is written with 5.

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?

Why do you find that most of the buildings are deprived of the 13th floor?

Replace each alphabet with the number (1-9) to make the below equation correct.

AB * C = DE - F = GH / I

I welcome the day with a show of light, I stealthily came here in the night. I bathe the earthy stuff at dawn, But by noon, alas! I'm gone.

The doctor advised his patient to take a tablet after every fifteen minutes. He gave him five tablets in total.

How much time will he take to have all the five tablets?

There was an aeroplane crash, every single person died, but two people survived. How is this possible?

If you’ve got me, you want to share me; if you share me, you haven’t kept me. What am I?

How can you write nineteen in a manner that if we take out one, it becomes twenty?

You are given with the following sum. Each of the letters can be decoded as a digit. If we tell you that D = 5, then can you solve it entirely?

DONALD
+GERALD
=ROBERT