What is the word or phrase?

John enters a small room. The Door Closes.
When the door opens, John is in a larger room.

Explain?

An equation has been laid down using a few matchsticks. However, as you can see, the equation is not correct. Can you correct the equation if you are allowed to add or remove 5 matchsticks?

Rose, Lily and Jasmine decided to buy flowers for their moms on Mother's Day. One of them bought lilies, the other roses, and the third one jasmines.
'It's funny!' said the girl with roses, 'we bought roses, jasmines and lilies, but none of us bought the flowers matching her name'.
'You're right!', said Lily.
What kind of flowers did each of the girls buy?

In a university, a professor gave a set of three problems to the three brilliant students of his class. See the image for the questions.

When we see 2 but call 10?

A man was just doing his job when his suit was torn. Why did he die three minutes later?

What do you answer even though it never asks you questions?

What kind of storm is always in a rush?

Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?