In four steps you need to move the word 'cold' From 'warm' by replacing one alphabet at a time such that every word formed at each step is acceptable in English Dictionary.

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

While going to your grandmother's house, you counted Twenty houses on the right side. While returning back to your home, you counted Twenty houses on the left side.

How many houses are there between your home and your grandmother's home?

What does the following BrainBat signifies?

ABCDEFGHIJKLMNOPQRSTUVWYZ

QQQQQQQQQQQQQQQQQQQQQQQQQ.

Transform the word THINK into BRAIN while changing only one letter at a time in a manner that each of the word in the process is a real word!!!

Before Mount Everest was discovered, what was the highest mountain in the world?

I’m tall when I’m young, and I’m short when I’m old. What am I?

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

What is the next number in this matchsticks series riddle?