Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?

Can you find a number that lies one third of the distance between 1/3 and 2/3?

I drive at an average speed of 30 miles per hour to the railroad station each morning and catch my train. On a particular morning, there was a lot of traffic and at the halfway point, I had averaged only 15 miles per hour. How fast must I drive for the rest of the way to catch my train?

Andrew sees a very rare bird named "Ruppell's vulture". Soon Andrew was dead. Can you explain the mystery, Mr. Sherlock?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

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

Can you spot the hidden girl in the picture below?

The following question it puts forth you:

25 - 55 + (85 + 65) = ?

Then, you are told that even though you might think it's wrong, the correct answer is actually 5!

Whats your reaction to it? How can this be true?

A bomb goes off.
Carnage.
One person, only a few feet away, survives! How can this be?

Identify the 10 differences between the two given pictures.