The more of this there is, the less you see. What is it?

A convention is held where all the big logicians are summoned. The master places a band on everyone's forehead. Now all of them can see others bands but can't see his own. Then they are told that there are different colours of bands. All the logicians sit in circle and they are further explained that a bell will ring at regular intervals. The moment when a logician knew the colour of band on his forehead, he will leave at the next bell. If anyone leaves at the wrong bell, he will be disqualified.

The master assures the logicians that the puzzle will not be impossible for anyone of them. How will the logicians manage ?

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

I have branches, but no fruit, trunk or leaves. What am I?

If eleven plus two equals one, what does nine plus five equal?

What's the only room from which no one can enter or leave

In a town, there are over 100 flats.
Flat-1 is named first flat.
Flat-2 is named second flat.
Flat-3 is named third flat.

A visitors 'Victor' decides to walk through all the flats, he finds all the flats except flat-62.
Victor later founds that the local of the town have given it another name.

What is the name of the Flat?

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

A Doctor always sneezes before the rain. Doctor sneezes, Will it rain?