Answers:

*Wee ones: *3 apples.

*Little kids: *4 out of 10. *Bonus: *9 pieces, since we have 3 apples + 6 acorns.

*Big kids: *18 squirrels. 24 crossed over, then 12 left (leaving 12 there), then half of the 12 who went home (6 squirrels) came back, giving us 12 + 6. *Bonus:* 5:08 pm. At 20 seconds each, 3 squirrels can cross each minute since 1 minute = 60 seconds. Then 24/3 = 8 sets of squirrels = 8 minutes.

*The sky’s the limit: *84 squirrels. Since squirrels have 4 feet and people have just 2, it takes 4 squirrels to have 8 times as many feet as a person (16 feet vs. 2 feet). 42 sneakers means there are 21 people (42/2), and then 21 x 4 = 84.