You have to fill the below given grid in a manner that every row and column contains the digits 1 to 6. Also, make sure that the squares that are connected with each other must contains the same digit.

Find the missing letter in the last circle logically in the given below picture.

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

You need to move three matchsticks to form three squares. Can you do it?

You walk into a room where there are three primates held in their respective cages:
1) A lion who is eating the flesh of a goat.
2) An orangutan who is playing with blocks.
3) A donkey who is sitting idle.

Who is the most intelligent primate in the room?

I am never scared but became petrified and can’t live in a house but would die to make one. What am I?

What can go up a chimney down, but can’t go down a chimney up?

If you drop a 15 kg iron bar and a 5 kg bag of cotton from a height of 50 meters which will reach the ground first?

At a bar, three friends, Mr Green, Mr Red and Mr Blue, were having a drink. One man was wearing a red suit; one a green suit; and the other a blue suit. 'Have you noticed,' said the man in the blue suit, 'that although our suits have colours corresponding to our names, not one of us is wearing a suit that matches our own names?' Mr Red looked at the other two and said, 'You're absolutely correct. What colour suit is each man wearing?