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?

Replace the question mark with the correct number in below Picture:

I live in a bowl. I can swim. I have a tail. I also have fins and big eyes. What am I?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

On my way to St. Ives I saw a man with 7 wives. Each wife had 7 sacks. Each sack had 7 cats. Each cat had 7 kittens. Kittens, cats, sacks, wives. How many were going to St. Ives?

Count the number of triangles in the below picture?

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?

Can you find a seven digit number which describes itself. The first digit is the number of zeros in the number. The second digit is the number of ones in the number, etc. For example, in the number 21200, there are 2 zeros, 1 one, 2 twos, 0 threes and 0 fours.

If it took eight men ten hours to build a wall, how long would it take four men to build it?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?