In the addition below, all digits have been replaced by letters. Equal letters represent equal digits and different letters represent different digits.
ABCABA
BBDCAA
ABEABB
ABDBAA
------- +
AAFGBDH
What does the complete addition look like in digits?

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

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.

A Scientist was fifty years old in the year 2000 but he was forty years old in the year 2010. How can this be possible?

PS: It has a logical answer.

A large container is kept in open under the rain. Every passing hour, the water collected inside the container becomes double what it was.

In ten hours, the container is filled completely. Can you calculate how long would it have taken to be filled in half?

If a wheel has 54 spokes, how many spaces are there between the spokes?

In the picture given below, can you find out which digit will take place of the question mark?

I have lakes with no water, mountains with no stone and cities with no buildings. What am I?

How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?

Can you find out the smallest number that can be conveyed as the sum of three squares in three unique ways?