John was running from 40 thieves. John has got 3 gold boxes which weigh as 4kg, 2kg, and 1kg respectively. A witty man asked John to stay with him for seven days in exchange for 1kg gold per day. John needs to stay there for seven days and also do not want to give the witty man any advance. How can John pay for his seven days stay?

Replace the question mark with the correct number.

You are in a land where thirty men and two women were dressed in classic black and white dresses.
They begin to fight as soon as any of them move.

Where are you?

In a supermarket, there is an intelligent glass pane before a refrigerating unit. This glass pane allows cherries and apples through it but does not allow grapes and Orange to pass through it.

Can you identify the rule that the glass pane is following?

Imagine you are in a room with no windows or doors. How will you get out?

What makes this number unique: 8,549,176,320?

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

My thunder comes before the lightning; my lightning comes before clouds; my rain dries all the land it touches. What am I?

What's a single-digit number with no value?

Can you place six matchsticks in a manner that each of the matchsticks is in touch with the other five matchsticks?