Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?

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

What has one eye, but can’t see?

Accidentally, two trains are running in the opposite direction and enter a tunnel that is 200 miles long. A supersonic bird that has fled the lab and taken shelter in the tunnel starts flying from one train towards the other at a speed of 1000 mph. As soon as it reaches the second train, he starts flying back to avoid collision and meets the first train again at the other end. The bird keeps flying to and fro till the trains collide with each other.

What is the total distance that the supersonic bird has traveled till the trains collided?

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

A train full of passengers goes through a tunnel. When the train comes out from the other end, there is no single person on the train.

How did it happen?

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

He digs out tiny caves and stores gold and silver in them. He also built bridges of silver and made crowns of gold. They are the smallest you could imagine. Sooner or later everybody needs his help, yet many people are afraid to let him help them. Who is he?

How many points are there on the globe where, by walking one mile south, then one mile east and then one mile north, you would reach the place where you started?

What seven-letter word has hundreds of letters in it?