What is the word or phrase?

What is greater than gold but cannot be bought. it can never be sold and can earn if its sought. though it can be broken, it can still be fixed. for by birth it can't start nor by death it is ended.what am i?

If an electric train is travelling south, then which way is the smoke going?

I have feet, but no legs. Which animal Am I?

If a wheel has 54 spokes, how many spaces are there between the spokes?

I am sure no one can have two things for dinner. what are they?

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98

I am the first thing you need while camping.
I am always with the person named Marcos Valencia and Carrick.
But Pogba Zlatan and Rooney think I am wasteful and do not need me.
I am the second to the last thing to add when you are making a patch.

What am I?

If you read clockwise, you can form a word by inserting three missing letters in the picture given below. Can you do it?

I am a type of room you cannot enter or leave. Raised from the ground below, I could be poisonous or a delicious treat. What am I?