Tease your brain with these riddles.
A: He wanted to grow a power plant.
A: They're blown away!
A: He was shocked!
A: Go fission.
A: They can both use a switch hitter.
A: Midnight oil.
A: They all like sun, wind, and water.
A: The fuel cells.
A: Brain power!
A: We need rays!
A: Just one, but not very often. They're smart enough to use energy-efficient LED (light-emitting diode) light bulbs, which last a long time and don't need to be replaced as often as other types of light bulbs.
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