Can you replace the question mark with the correct letter?

6 + 6 + 6 = N
7 + 7 + 7 = E
8 + 8 + 8 = R
0 + 0 + 0 = ?

A man dies of old age on his 25 birthday. How is this possible?

What English word has three consecutive double letters?

Count the number of triangles in the below picture?

You have a thousand Re. 1 coins with you. You have ten bags with you and you can put any number of coins in each of the bags. The condition is that if someone asks you for any amount between 1 and 1000, you must be able to give that amount by just giving the bag (you are not allowed to open the bag and give coins).

How will you do it?

What is the largest number you can write with just 3 digits?

How can you take 2 from 5 and leave 4?

In an office's desk, you find a unique method that shows the current day of the month. Two numbered cubes are used to depict the current date.

Can you find out the numbers on both the cubes so that each date can be mentioned using them?

Please note that you have to use both the cubes to display any date. Thus the 1st day must be represented by 01 and so on.

In the image given, you can find several triangles. Can you count them all?

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?