If Bihan is 10, Anirudha is 20, and Kim and Seal are both 5, but Rikold is 10, how much is Kenniger by the same trend?

why number 8549176320 is one of a kind?

what's the probability of getting a king or a queen from a pack of 52 cards?

John: "Hi Teacher, What is your favourite movie ?".
Chemistry Teacher: "Indium Cerium Platinum Iodine Oxygen Nitrogen".
Ten seconds later... John replied I got it.

Do you?

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

John is 45 years older than his son Jacob. If you find similarities between their ages, both of their ages contain prime numbers as the digits. Also, John's age is the reverse of Jacob's age.

Can you find their ages?

You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

John buys rice at Rs.60/kg from Britain and then sells them at Rs.5/kg in India. As a result of this, he becomes a millionaire. How come?

The centre of the third figure is empty. What digit should fit inside?

I have a five and a three-gallon jar. Assuming there is an infinite supply of water, how can I measure one-gallon water?