The Lily Pad Pond
A lily pad doubles in size every day. If on the 60th day the pond is filled with the lily pad.
On what day is the pond only half covered?
A lily pad doubles in size every day. If on the 60th day the pond is filled with the lily pad.
On what day is the pond only half covered?
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The 59th day. It doubles every day, and if the pond is half full on the 59th day, then it is filled on the 60th day. ðŸ™‚ Easy ðŸ˜‰

A frog is at the bottom of a 30 meter well.
Each day he summons enough energy for one 3 meter leap up the well. Exhausted, he then hangs there for the rest of the day.
At night, while he is asleep, he slips 2 meters backwards.
How many days does it take him to escape from the well?
Please Note: Assume after the first leap that his hind legs are exactly three meters up the well. His hind legs must clear the well for him to escape.
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Each day he makes it up another meter, and then on the twenty seventh day he can leap three meters and climb out. ðŸ™‚
