**Puzzle 1:**** **What time should the last watch show?**Answer:**** **3:36

**Explanation:**** **On each watch, the time shown contains two digits that are the same.

**Puzzle 2:**** **Where should the missing hand point to?**Answer: **To the 8

**Explanation:**** **Start with the top clock face and move clockwise around the others. The sum of the numbers pointed to by the 2 hands follows the sequence 5, 10, 15, 20.

**Puzzle 3:**** **Which letter replaces the question mark?**Answer:**** **O

**Explanation:**** **In each segment of the diagram are a pair of letters, one of which is the same distance from the start of the alphabet as the other is from the end.

**Puzzle 4:**** **Which letter replaces the question mark?**Answer:**** **K

**Explanation:**** **The numerical values of the letters in opposite segments of the circle always add up to 17.

**Puzzle 5:**** **Which letter replaces the question mark?**Answer:** N

**Explanation:**** **The sum of the numerical value of the letters around each star is always 55.