Below are RP samples that you can use for yours. There are three to choose from with many possible outcomes. Be creative. Also, if you do not want to use these, that is fine.
1. You are stuck in a cage above boiling lava. There is a platform not too far away. You could make the jump if the bars were broken. You have a small pack with things inside which could help you. (You can decide what's inside there)
2. You must find the doctor in the crowded city of London. He could be anywhere. You must warn him of an alien invasion about to happen. (You can decide where he is, just make sure you include how you found him)
3. Your best friend is captured by a Weeping Angel. They cannot move their leg which is trapped in the Angel's tight fist. You have a toolbox and a medical kit. You must find a way to get your friend out of the Angel's deadly grip. (Be creative here, there are many possibilities)