I’m tall when I’m young, and I’m short when I’m old. What am I?

Find the combined weight of the Cat, Dog and Rabbit in the given picture.

using four eights (8) and a one (1) and one mathematical symbol , create the number 100

Solve the following series:
AZ, GT, MN, __, YB

Why did the Girl throw the butter out of the window?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

There was once a college that offered a class on probability applied to the real world. The class was relatively easy, but there was a catch. There were no homework assignments or tests, but there was a final exam that would have only one question on it. When everyone received the test paper it was a blank sheet of paper with a solitary question on it: 'What is the risk?'.Most students were able to pass, but only one student received 100% for the class! Even stranger was that he only wrote down one word!
What did he write?

Different lights make me strange by changing me into different sizes. What am I?

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

If,
29 - 1 = 30
9 - 1 = 10
14 - 1 = 15

Based on similar logic, Can you prove that the below algebraic equation is true?
11 - 1 = 10 ?