Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?

I am 5 letters long.
My first two tell you who I am
My first 3 could be a medicine
My last three reversed could be a young boy.
My 4th, 3rd and 2nd in that order could be a fruit drink.
If you have me you may hang me round your neck
WHAT AM I ?

Which country gets ill every time?

What four weights can be used to balance from 1 to 30 pounds?

Which is heavier: a ton of bricks or a ton of feathers?

John is found dead in a bare field. Nobody killed John,
John did not commit suicide.

Inspector Jacob found a bag just a few meters away from John which could save his life. What was in the bag?

Before Mount Everest was discovered, what was the highest mountain in the world?

Where do you go to learn how to make ice cream?

Assume there are approximately 5,000,000,000 (5 billion) people on Earth. What would you estimate to be the result, if you multiply together the number of fingers on every person's left hand? (For the purposes of this exercise, thumbs count as fingers, for five fingers per hand.) If you cannot estimate the number then try to guess how long the number would be.

You have two buckets of 11 liters and 6 litres.
How can you measure exactly 8 litres?