Find out a multi-digit number that if multiplied by the number 9 or any of its multiplications products (i.e. 18, 27, 36, 45,..) will result in the multiplication factor repeated (n) number of times.

You have two strings whose only known property is that when you light one end of either string it takes exactly one hour to burn. The rate at which the strings will burn is completely random and each string is different. How do you measure 45 minutes?

What occurs twice in a week, once in a year but never in a day?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

What is the next number in the series?

15 29 56 108 208 ?

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

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

Your mother’s brother’s only brother-in-law is asleep on your couch. Who is asleep on your couch?

Why do we preferably have round manhole covers and not square ones?

What month of the year has 28 days?