Can you find out what is missing?

1 3 5
2 4 ?

Hint: It's not six. Think out of the box.

When I get multiplied by any number, the sum of the figures in the product is always me. What am I?

Sherlock Holmes was challenged to make a pre-drawn line smaller without erasing it. He did it in fractions of seconds. How?

You and your two friends are working in a multinational company. How can you three find out the average salary of you all without disclosing your own salary to the other two?

Find three numbers such that When we multiply three numbers, we will get the prime numbers. The difference between the second and the first number is equal to the third and second.

The day after tomorrow will be three days before Tuesday. Can you find out what is today?

If an earthquake is 1 point higher on the Richter Scale than another earthquake which is actually 10 times stronger, how much stronger would an earthquake be if it was just half a point higher on the Richter scale?

Chocolate costs 6 rupees and a Toy costs 5 rupees. If you have 32 rupees in total, how many chocolates and how many Toys can be purchased with that amount?

In the below-given picture of a pretty girl, there is something wrong. Can you find out what it is?

Which part of London exists in France as well ?