I noticed one of the words in the oxford dictionary is spelled incorrectly. What about you?

In the picture given below, can you find out which digit will take place of the question mark?

A man has to get a fox, a chicken, and a sack of corn across a river.

He has a rowboat, and it can only carry him and one other thing.
If the fox and the chicken are left together, the fox will eat the chicken.
If the chicken and the corn are left together, the chicken will eat the corn.

How does the man do it?

You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

I went to the bookshop and spent one-half of the money that was in my purse.

When I came out, I found that I had as many cents as I had dollars and half as many dollars as I had cents when I went in. Find the money in my purse when I entered the store.

How can you write nineteen in a manner that if we take out one, it becomes twenty?

The first two letters signify a male, the first three letters signify a female, the first four letters signify a great, while the entire world signifies a great woman. What is the word?

What has many keys but can’t open a single lock?

The person who makes it has no need for it; the person who buys it has no use for it. The person who uses it can neither see nor feel it. What is it?