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.

Cristina was born in 1888. She just had her 30th birthday today how did that happen?

How many Watermelons are there in the below picture?

The captain of a ship was telling this interesting story: "We travelled the sea far and wide. At one time, two of my sailors were standing on opposite sides of the ship. One was looking west and the other one east. And at the same time, they could see each other clearly." How can that be possible?

How many letters are in the alphabet?

In the given picture, in how many ways can you read the word "Tiger"?

Three ants are sitting at the three corners of an equilateral triangle. Each ant starts randomly picks a direction and starts to move along the edge of the triangle. What is the probability that none of the ants collide?

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

You are confined in a room and given two metal rods. Out of these two rods, one is magnet and the other is the iron rod. They look starkly similar. You don't have any other metal object in the room.

How will you decide which one of those is magnet?

How many points are there on the globe where, by walking one mile south, then one mile east and then one mile north, you would reach the place where you started?