Replace the question mark with the correct number in the below-given picture?

On a certain day, John celebrated his birthday. Two days later, his older twin brother Jacob celebrated his birthday.

Is this even possible? How can it be?

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?

Spot the cat in the picture below

In one of the popular batman series movie "Batman Forever", there was a riddle that goes like "Tear me off and then scratch my head and I was red then and now I am back. Who am I?

Can you name some countries which do not have the alphabet 'A' in them?

Something Extraordinary happened on May 6th 19778 at 12:34am what was that?

An express train takes 3 seconds to enter the tunnel which is 1 km long.
If it is travelling at 120 km an hour, how long will it take to pass completely through the tunnel?

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

A cat had three kittens: Snophy, Topsy and Jorden. What was the mother's name?