WitP #1 - Riddle Me This...Revisited Mystery Cache

This cache is the first of my “Walk in the Park” series.  For parking to the WitP series, I used Village Point Park, but you can also follow the trails from Bay Front Park. At the time of hiding these caches, no bushwacking is needed. All containers can be reached from a clear trail unless noted otherwise. Access to these parks are from dawn to dusk.

Just like all other “Unknown” caches, the cache is not at the listed coordinates. You will need to solve the riddles below to gain the missing numbers.

All "Finds" that have not signed the physical log book will be deleted.

2.    Divide 30 by 1/2  and add 10. What is the answer?

3.    If there are 3 apples, and you take away 2, how many do you have?

4.    A farmer has 17 sheep, all but 9 die. How many are left?

5.    There are a mix of red, green, and blue balls in a bag. The number of the balls is 60. There are four times as many red balls as green balls and 6 more blue balls than green. How many balls of each color are there?
a.    Blue balls =
b.    Red balls =
c.    Green balls =

6.    Fred owns a pet store. He puts one canary per cage, but has one bird too many. If he puts two canaries per cage, he has one cage too many. How many cages and canaries does he have?
a.    Canaries =
b.    Cages =

7.    As I went to St Ives, I met a man with seven wives. Each wife had seven sacks, each sack and seven cats, each cat had seven kits. Kits, cat, sacks, and wives, how many were going to St. Ives?

8.    Because cigars cannot be entirely smoked, a hobo who collects cigar butts can make a cigar out of every 5 butts that he finds. Today he has collected 25 butts. How many cigars will he be able to smoke?

9.    I am a three digit number. My tens digit is five more than my ones digit. My hundreds digit is eight less than my tens digit. What number am I?

The cache is a camouflaged lock and lock container with a log and a few trade items. You will need to BYOP. The cache is located at N 30* AB.CDE W087* FG.HIJ

A = The number of cages to question 6.
B = The answer to question 4 – the answer to question 3.
C = The answer to question 7 + the answer to question 8.
D = The tens digit in question 2.
E = The answer to question 1 + the ones digit of the amount of red balls.
F = The ones digit of blue balls.
G = the amount of green balls – the number of canaries – the answer to question 1.
H = The tens digit of question 9.
I = the number of canaries.
J = The answer to question 4.

You can validate your puzzle solution with certitude.