Logic Puzzles Questions and Answers

43. What number should replace the question mark?
  What is the next number?
Answer
21, 31.
There are two interwoven sequences. Start at the first 1 and add 2, 3, 4, 5, 6. Start at the second 1 and add 2, 4, 6, 8, 10.
44. Start at one of the four corner squares and spiral clockwise round the perimeter to spell out a nine letter word, finishing at the centre square. You must provide the missing letters.
  What is the next number?
Answer
= PORTFOLIO.