Alphabet quiz

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Across
  1. 2. Where Jehovah's Witnesses hold their meetings (7,4)
  2. 5. First woman on earth, according to Greek mythology
  3. 6. Title of Adele's first album
Down
  1. 1. Famous pianist
  2. 3. Spraint is the dung of this animal
  3. 4. Artist who painted "The water lily pond"