Best difficult riddles

Never feel me

Die without me, Never thank me. Walk right through me, Never feel me. Always watching, Never speaking. Always lurking, Never seen.
Air.
72.81 %

Fishing pole

A boy goes and buys a fishing pole that is 6' 3" long. As he goes to get on the bus, the driver stops him. The driver tells him that he can't take anything longer than 6' onto the bus. The boy goes back into town, purchases one more thing, and the driver allows the boy on the bus. What did the boy buy, and what did he do with it?
The boy bought 6' long box. He put the fishing pole in diagonally and the entire package was only 6'!
72.80 %

How many letters are there

How many letters are there in the English alphabet?
There are 18: 3 in "the", 7 in "English" and 8 in "alphabet".
72.80 %

Love triangle

A doctor and a bus driver are both in love with the same woman, an attractive girl named Sarah. The bus driver had to go on a long bustrip that would last a week. Before he left, he gave Sarah seven apples. Why?
An apple a day keeps the doctor away!
72.78 %

Sick crocodile

What is a sick crocodile?
An ail-ligator.
72.70 %

Height marked into the tree

When Manish was three years old he carved a nail into his favorite tree to mark his height. Six years later at age nine, Manish returned to see how much higher the nail was. If the tree grew by five centimeters each year, how much higher would the nail be.
The nail would be at the same height since trees grow at their tops.
72.70 %

What does the following represent

What does the following represent? N N N N N N N A A A A A A A C C C C C C C
7 up cans.
72.70 %

Always coming

I am always will be coming, but I will never come. What Am I?
Tomorrow.
72.66 %

Shut up in a wooden case

I am taken from a mine, and shut up in a wooden case from which I’m never released, and yet I am used by many. What am I?