crossword for stupid/smart people

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Across
  1. 2. for stupid/smart people
  2. 4. a triangle (5,5)
  3. 7. queen Victoria was one
  4. 8. we have hair on our....
Down
  1. 1. someone who teaches you stuff
  2. 3. the sky is....
  3. 4. you are on one now
  4. 5. something we don't like
  5. 6. the capital of Fiji