Question: if you have a chicken that can lay only 5 eggs every 2 hours and you have to get 10 eggs to the market by 6:00 and the current time is 5:00, how do you get all 10 eggs to the market on time ?
Answer: You just take them from the fridge. You must have stocked up on them by now.
Question: Two men, Watson and Holmes, are out in the extremely dry forest. They are completely surrounded by a large forest fire on one side and a dangerous cliff on the other. The wind is blowing the forest fire towards them and the cliff. The fire will reach them in about one day.
Holmes turns to Watson, "I have matches, berries, and enough water for a day. We aren't going to die." How can they avoid getting swallowed up by the forest fire?
Answer: They can start a fire of their own with the matches and the wind will blow that fire in the same direction as the forest fire and they can take refuge in the section of the forest they burn down.