Which country gets ill every time?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

Your job is to measure 45 minutes if you have only two cords and matches to light the cords.

1. The two cords are twisted from various materials, so their different segments can burn at different rates.
2. Each cord burns from end to end in exactly one hour.

Describe your way of measuring the 45 minutes.

I noticed one of the words in the oxford dictionary is spelled incorrectly. What about you?

When it's bad luck to meet a black cat?

What is black when you buy it, red when you use it, and gray when you throw it away?

Spot 5 differences in two Christmas tree below:

I am the beginning of everything, the end of everywhere. I'm the beginning of eternity, the end of time and space. What am I?

What goes through cities and fields, but never moves?

What building has the most stories?