Puzzles - Number puzzles

109.
Answer
:
601
Explanation
:
Starting at the top, double each number and add 7 to give the next number down.

110.
Answer
:
92
Explanation
:
Working from top to bottom, left to right, add together the first two numbers and subtract 3 to give the next value along.

111.
Answer
:
47
Explanation
:
Starting at the top on the left, and working in rows across the 3 triangles, values increase by 2, then 3, then 4 etc.