Random Puzzles 

Workings

Hint
Think laterally.

Answer
A mushroom.

Or perhaps elbow room.

Workings

Answer
15 donuts, 10 chocolate eclairs and 75 iced rolls.

15 + 10 + 75 = 100 and 15 x 0.56 + 10 x 2.26 + 75 x 0.92 = 100.00.

Workings

Hint
Remember that a quarter is 25c, a dime is 10c and a nickel is 5c.

Answer
92 of each coin.

Reasoning
There are an equal number of quarters, dimes and nickels, so we know that the answer must be a multiple of:

   25c + 10c + 5c = 40c

and:

   3680c ÷ 40c = 92 coins.

Workings

Hint
How old was the person in second place?

Answer
# Name    Age
1 Drew    30
2 Emery   24
3 Glen    27
4 Alex    32

Reasoning
By (2), because Glen was three years older, the person in 2^nd place was either 24 or 27.

But 2^nd place can't have been 27, because, by (4), Emery was ahead, but didn't win.

So 2^nd place was 24, and Glen was 27.

By (3), Drew could only be 27 or 30, but we now know what Glen was 27, so Drew was 30.

By (1), the person who came last was 32:
1
2         24
3
4         32

By (4), the 27-year-old can't have won,
1 Drew    30
2         24
3 Glen    27
4         32

By (4), Emery beat the 27-year-old:
1 Drew    30
2 Emery   24
3 Glen    27
4         32

Leaving Alex in last place.
1 Drew    30
2 Emery   24
3 Glen    27
4 Alex    32