Prove that twice of ten is the same as twice of eleven.

A seven-year-old kid challenged his classmates that he can make the number one disappear by adding something to it.

How can he do that?

The sum of a mother, her baby and her dog's weight is 170 Kg. How much does the baby weigh if the mother weighs 100 kg more than the combined weight of the baby and the dog, and the dog weighs 60 per cent less than the baby?

How can you make a TV, a bed, a dog, and a car liquid?

In particular commonwealth games, a female participant won silver and gold medals for a single event.

How can this be possible?

I have 50 feet long of cloth, I need to create 50 handkerchiefs each size of 1 foot. I take one minute to cut a 1-foot handkerchief. So how long will it take to cut 50 handkerchiefs?

What part of Turkey has the most feathers?

What two things can you never eat for breakfast?

Find the next number in the series below

21 32 54 87 131 ?

A girl was sitting in her hotel room when she heard a knock on the door. She opened the door and found that a man was standing outside. The man said, "Oh! I am really sorry, I thought this was my room." He then walked through the corridor to the elevator. The girl did not know the man. She closed her door and called security asking them to apprehend the man. What made her suspicious of that man? He might have been genuinely mistaken.