There is no cache in this part of Baneasa forest east of the zoo but one, hence I'd like filling the map. You have to answer a few questions first.
1. At the given coordinates look around. You will see a 10-digit number. Calculate the checksum (=sum of all digits until you get a single digit). This is A.
2. Nine hens lay nine eggs in nine days. How many hens lay twenty-seven eggs in twenty-seven days? This is B.
3. A stone weighs one pound plus two thirds of its weight. What is the stone's weight? This is C.
4. A4+C2=D2 D is a positive whole number. What is D?
The cache is at the following coordinates:
N 44° 31.(A+D)(B-C2)(C-A) E 026°07.(C+D)(B-A)(B-D)