Logic Puzzles Questions and Answers

9. What number should replace the question mark?
  What is the next number?
The link between the three numbers on each line follows the same rule.
Answer
Ans = 16 in both lines.
7 x 4 = 28 and 2 x 8 = 16.
10. Which is the odd one out?
  What is the next number?
Answer
Ans = E.
In all the others a black dot is inside a figure with an odd number of sides and a white dot is inside a figure with an even number of sides.