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 ?

How high do you have to count before you use the letter “a” in the English spelling of the whole number?

How can you write nineteen in a manner that if we take out one, it becomes twenty?

What does this Rebus Picture mean?

What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?

Can you find out what is missing?

1 3 5
2 4 ?

Hint: It's not six. Think out of the box.

An evil man kidnapped someone and made them take one of two pills. One was harmless, but the other was poisonous. Whichever pill the victim took, the kidnapper took the other one. The victim took their pill with water and died. The kidnapper survived. How did the kidnapper get the harmless pill?

I have nine bottles of wine and one of the nine bottles is poisoned.
I need to find the poisoned bottle with two facts
(1) Poison is deadly, only a sip will cost death
(2) I have two mice to do so.

How should I do it?

What seven-letter word has hundreds of letters in it?

What building has the most stories?