A man has a barrel filled with oil that weighs 100 pounds, and then he puts something into it. Now the barrel weighs less than 100 pounds. What did he put in the barrel?

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

What has many keys but can’t open a single lock?

If eleven plus two equals one, what does nine plus five equal?

Find out the missing number in the picture attached:

If 21x = 79x, what is the value of x?

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?

Identify Me

Hint1: I am a god
Hint 2: I am a planet
Hint 3: measurer of heat

Find the number of squares in the below picture

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?