John and Jenni are a married couple. They have two kids, one of them is a girl. Assume safely that the probability of each gender is 1/2.
What is the probability that the other kid is also a girl?

Hint: It is not 1/2 as you would first think.

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

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

What is 3/7 chicken, 2/3 cat and 2/4 goat?

what does the below math rebus puzzle mean?

What is the largest number you can write with just 3 digits?

An evil man kidnapped someone and made them take one of two pills. One was harmless, but the other was poisonous. Whichever pill the victim took, the kidnapper took the other one. The victim took their pill with water and died. The kidnapper survived. How did the kidnapper get the harmless pill?

If an electric train is travelling south, then which way is the smoke going?

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?

Can you make the below equation true by using any three numbers from "1, 3, 5, 7, 9, 11, 13 and 15"?

( ) + ( ) + ( ) = 30