Match the river to the country of its source

There are 118 named elements in the Periodic Table. How many can you guess?

20 random countries have been removed from the map of the world! Can you identify them in 3 minutes?

On each line, you will see three countries. Guess the one that has the highest population of the three. One wrong guess and it's over.

You will be shown 10 random numbers between 1 and 100 without knowing what's next. Your task is to put them in order! But beware, if a number cannot be placed, the quiz ends...