Swimming Riddles

Wash it and it isn't clean. Don't wash it and then it's clean. What I Am?
Answer Water
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I am the biggest alphabet, as I contain the most water in the world. Who am I?
Answer Alphabet 'C'
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What does a fish swimming in the water say when it strikes against a wall?
Answer Oh dam!
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If you were swimming in the ocean and a big alligator attacked you, what should you do?
Answer Nothing. Alligators do not live in the ocean
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What happens thrice in weightlifting, twice in swimming, but only once in tennis?
Answer The letter 'i'
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Why did the teacher jump into the swimming pool?
Answer The teacher wanted to test the water
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What kind of exercises are best for a swimmer?
Answer Pool-ups (Pull-ups)
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Why can male elephants always get into the swimming pool?
Answer They always have their trunks
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