What is something of which there are multiple, but you can't make full a list of, while you can make a list of the worst ones.
There are 10 bags full of coins out of which one bag is full of fake coins which we don’t know. But you do know that genuine coins weigh 01 gram, but fake weighs 1.1 grams. We have to identify that bag in minimum readings a digital weighing machine.
There is a box full of marbles, all but two are blue, all but two are green, and all but two are red.
How many marbles are in the box ?
