Picture Puzzles Questions

17. Which is the missing tile?
  What is the next number?
What is the next number?
Answer
Ans = C.
All lines carry on and change from dotted to unbroken, and vice versa.
18. What letter is immediately to the left of the letter that is immediately below the letter two to the left of the letter I?
  What is the next number?
Answer
K.
123456789101112131415




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