Snakes and ladders

For teachers and students
Snakes and ladders can be a very educational game, as it is simple and straightforward (1) . The only thing you need are counters (2)  and one dice.

The game is very simple, players take turns rolling the dices and walking on the squares. If you fall in the bottom of a ladder, you go up to the top of the ladder, if you fall on the head of a snake, you go down. If you fall on the middle of any of them, you don't move, though.
There may be additional rules, as for example if you fall in the same square of another player, you can switch places with him.

For the educational part, I made a series of questions for them. Every turn, they had the chance to answer a question, if correct, they could step one square, if they missed, they had to step 1 square back.
Examples of questions:

1.  List two ingredients for a cake.
2. Who is the richest man in the world?
3. What is my profession?
4. What is Argentina’s capital?
5. What time do you have lunch?
6. Where do you live?
7. How much does a newspaper cost?
8. What's the most beautiful girl's name you've heard?
9. Do you have a nickname?
10. What is your favorite book?
11. Who was our president in 2000?
12. Who is your favorite author?
13. Who is our mayor?
14. Is any of your friends 22 years old?
15. What color are my pants?

(1) straighforward: direct
(2) counters: peons, markers, counting device

Examples of counters