I am having a scavenger hunt birthday party and I'm not sure how much time to allow the scavenger hunt to go for. There must be a time limit because the winner is decided by who gets picutres with/of all of the items before time runs out.

KEPP IN MIND: One of the rules is that they can not take a picture with sometime for the list in the same store 2 times in a row (this keeps evryone moving all around).

Is 1 hour too long or too short of time to complete these 20 tasks?
Should I cut down the time or amount on the list?

1. An animal.
2. A “mirror pic” of everyone in your group wearing an ugly dress.
3. Ask someone for the time.
4. Spell out YMCA with a stranger.
5. Ride the escalator striking your best model pose.
6. Put on the highest pair of heels you can find.
7. Giving a high five to a random child under the age of 10.
8. Everyone wearing bright blue eyeshadow.
9. Have a crump contest in front of starbucks.
10. Sleeping in a bed.
11. Befriend a salesperson.
12. Buying a gumball

13. Singing along with a musical card.
14. Wearing an old lady hat.
15. A book in another language.
16. A Voltzwagon Beetle, PT Cruiser or Mini Cooper.
17. Your entire group (excluding the photographer) under a bench.
18. Hiding in a clothing rack.
19. All of your team in ONE bathroom stall.
20. Reading the menu at a resteraunt.