The answer is a dentist
A Dentist is who you are
Who Am I?
I dig out tiny caves in which I store Gold and Silver I build bridges of Silver I make Crowns of Gold, The Smallest you can imagine, Sooner or later you will need me, yet you're afraid of me.
Circular, shiny, silver or gold if you have a girlfriend and you love them, get one of these to show that they are the only one in your world.
There are 3 bags and all are labelled incorrectly as follows:
Bag1 : Silver Bag2 : Gold Bag 3: Silver and Gold.
You need to label all bags correctly by opening just one bag.
How come?
In a 10 km race, Sushant, Rajkumar and Suraj, each running at uniform speed, get the gold, silver and bronze medals respectively. If Sushant beats Rajkumar by 1 km and Rajkumar beats Suraj by 1 km, then by how many metres does Sushant beats Suraj?