Why 1729 is a magic number? Answer Logically.

I have thought of a number that is made up by using all the ten digits just once. Here are a few clues for you to guess my number:

First digits is divisible by 1.
First two digits are divisible by 2.
First three digits are divisible by 3.
First four digits are divisible by 4.
First five digits are divisible by 5.
First six digits are divisible by 6.
First seven digits are divisible by 7.
First eight digits are divisible by 8.
First nine digits are divisible by 9.
The number is divisible by 10.

Can you find out the number ?

What goes up but never comes down?

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

What can go up a chimney down, but can’t go down a chimney up?

what's the probability of getting a king or a queen from a pack of 52 cards?

The Little ant seems to be always confused. Do you know why?

It has five wheels, though often think four, You cannot use it without that one more, You can put things in it, you can strap things on top, You can't find it in the market, but you can still go shop. What is it?

12345 a famous South Indian actor
567 is a path in jumbled form
8 & 10 are same letters
9 is one among the first six alphabets.
WHO AM I?

Do you know who was buried in John's tomb?