Two in a corner, one in a room, zero in a house, but one in a shelter. What is it?

What is the word or phrase?

What can jump higher than a building?

Can you replace the question mark with the correct number in the below table sequence?

What is the difference between a jeweller and a jailer?

Today is John's birthday.
A year ago, John had five candles and he lit all the candles except the one at the last.
Now he is going to light all the candles.

How old is John Today?

(He is not five today.....)

In the figure that has been attached to this question, each digit represents a digit. The similar letters carry the same integer value. Can you expose the original digits?

If you say my name, I will no longer exist. What am I?

John went to buy some expensive, foreign chocolates. He only had Rs 100 with him. When he reached the shop, he got out and know that on those chocolates, there was a 15% import duty and 5% VAT.

How much worth chocolate should he buy so that he can accommodate it in Rs 100?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?