At my favorite fruit stand,
an orange costs 18,
a pineapple costs 27,
and a grape costs 15.
Using the same logic, can you tell how much a mango costs?

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

A detective visits his friend John just to discover that John's neighbour Dr Jacob was murdered. Dr Jacob, who is a mathematician wrote the murderer's name in a code word "Hcqtfz". There were five suspects
1. Ajit
2. Pankaj
3. Ganpat
4. Deenu
5. Hariya

The Detective was instantly able to find the murderer.
Can you?

Spelt forwards I’m what you do every day, spelled backwards I’m something you hate. What am I?

What comes
Once in a Year
Twice in a Month
4 times in a Week
6 times in a Day

Solve the below puzzle by replacing the question mark with the correct number.

3 6 12

4 8 16

5 10 ?

Can you find out which number multiplied by itself will give the output as 12345678987654321?

Can you start the fire using two pieces of wood?

What word begins and ends with an E, but has only one letter?

The first box has two white balls. The second box has two black balls. The third box has a white and a black ball.

Boxes are labeled but all labels are wrong!

You are allowed to open one box, pick one ball at random, see its colour and put it back into the box, without seeing the colour of the other ball.

How many such operations are necessary to correctly label the boxes?