Why 1729 is a magic number? Answer Logically.

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

Find The Next Number in this series.
1, 2, 6, 42, 1806 ?

Why Wine Glass Stem is so long?

I get hot but I never sweat,
I cook food but I am not a chef,
I have a door but you can't enter me,
I have a light but I am not a lamp.
Who am I?

What kind of tree can you carry in your hand?

It's a 7-letter word.
If we remove 1 letter from it, it remains the same.
If we remove 2 letters from it, it remains the same.
If we remove 3 letters from it, it remains the same.
If we remove all the letters from it, still it remains the same.
What is it?

Can you figure out the logic I used to decide the order of the following words:
gun, shoe, spree, door, hive, kicks, heaven, gate, line, den

What is the next number in this matchsticks series riddle?

If in a car race, the man who came two places in front of the last man finished one ahead of the man who came fifth, how many contestants were there?