An intersting birthday party

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Across
  1. 1. equal to The amounts of the boys and girls are same.
  2. 3. The average of their height is 168cm.
  3. 5. All people are divided into two categories.
Down
  1. 2. Lucy,Lily,Serena,Sylvia,Jackson,Peter,Tracy,Tim,Bob,Kevin joined in the birthday party,calculate that how many people were there?
  2. 4. They used some space to dance and play.
  3. 6. Jackson __ed them his new watch.
  4. 7. They are playing hide-and-seek,Lucy hides somewhere,so Lily’s job is to __ Lucy.