In a rainy season, one day 3 huge ladies walked under a normal-sized umbrella.
The umbrella is not huge enough to accommodate all 3 ladies yet not a single lady got wet. Why?

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

Which city is three-fifths chick two third cat and 50% goat?

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

A man has a barrel filled with oil that weighs 100 pounds, and then he puts something into it. Now the barrel weighs less than 100 pounds. What did he put in the barrel?

I have a clock(12-hour format) and both the needles of the clock overlap at 12:00.
After how much time, they will overlap again?

Why Aeroplane windows are round?

Place a mathematical symbol between the numerals 5 and 9 in such a way that the resulting number is greater than 5 but smaller than 9.

Find three whole, positive numbers that have the same answer when multiplied together as when added together.

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?