How many times can you subtract the number two from the number fifty?

Which Burger Is Different in below image?

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

What month of the year has 28 days?

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

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?

John was going on a jungle trip. He asked his wife to pack something to eat, something to drink and something to burn if he feels cold in the jungle. When John opens the backpack he found just one thing in the bag. What was it?

I know a nine-letter word having only one vowel.
Do you ?

In four steps you need to move the word 'cold' From 'warm' by replacing one alphabet at a time such that every word formed at each step is acceptable in English Dictionary.