It is deaf, Dumb and Blind!!!

Still, always tells the truth. What is it?

There are five vowels (a, e, i, o, u) in the English language.
Can you tell us a word that contains all these vowels?

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.

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

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

You know three triplets: Frank John and Wayne (need to return your money). Frank always tells the truth while John and Wayne always lie. You meet one of them on the road and can ask him a three-word question.
Which question, will you ask?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

When I go in I might cause pain. I cause you to spit and ask you not to swallow. I can fill your hole. What am I?

Can you find out which number multiplied by itself will give the output as 12345678987654321?

With the help clues provided in the image, can you find the 5 digit key?