Missing Number Puzzles Questions

29. What number should replace the question mark?
  What is the next number?
Answer
Ans = 9.
(7 × 9) ÷ (7 × 1)
30. What number should replace the question marks?
  What is the next number?
Answer
9, 11.
Start at the top right hand square and spiral to the centre following the route shown in the sequence -2, +1, +2
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