81 x 9 = 801. What must you do to make the this equation true?

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

Seven Robbers robbed a bank and hide the coins in a lonely place.
They decide to divide the money equally the next morning. Two greedy robbers decided to cheat the others and reach the place at night. They equally divided the coins between them, one coin left. So they called another robber and then they decided to divide equally among the three. Sadly again one coin left. The same thing happened to the 4th 5th and the 6th robber.
However, when the 7th robber reached in the morning, they can divide the coins equally.

How many coins were there in total?

I had an infinite supply of water and 5 litres and 3 litres jars.

How would you measure exactly 4 litres in the least number of steps?

The more it dries, the wetter it becomes. Can you tell what it is?

Jigsaw captured 100 people and make them stand in a circle and all these people are labelled as Person1, Person2, Person3... Person100. He made them play a crazy game in which Person 1 shot Person 2 and pass the gun to the next person and so on until one stands alive.

Which person will survive in the end?

You have two buckets of 11 liters and 6 litres.
How can you measure exactly 8 litres?

Your mother’s brother’s only brother-in-law is asleep on your couch. Who is asleep on your couch?

How can you spell "White of an egg" in one word?
Hint: I know you can spell coke, poke, and joke.

There are seven sisters in a house in a village where there is no electricity or any gadget.

Sister-1: Reading Novel
Sister-2: Cooking
Sister-3: Playing Chess
Sister-4: Playing Sudoku
Sister-5: Washing clothes
Sister-6: Gardening

what is Sister-7 doing ?