When we see 2 but call 10?

What does the below mathematical rebus mean?

I am a type of room you cannot enter or leave. Raised from the ground below, I could be poisonous or a delicious treat. What am I?

Who can jump higher than a Mountain?

A California farmer owns a beautiful pear tree. He supplies the fruit to a nearby grocery store. The store owner calls the farmer to see how much fruit is available for him to buy. The farmer knows the main trunk has 24 branches. Each branch has exactly 12 boughs and each bough has exactly 6 twigs. Since each twig bears one piece of fruit, how many plums will the farmer be able to deliver?

What country can make you shiver?

A cat had three kittens: Snophy, Topsy and Jorden. What was the mother's name?

What has one eye, but can’t see?

What has many teeth, but cannot bite?

The peacock is a bird that does not lay eggs. How do they get baby peacocks?