During an interesting visit to Bissau, we hid this cache in town for all geocachers.
You will definitely find the answers quite easily.
Form the letter value and insert the numbers into the formula.
Enjoy!
Welches Land grenzt im Norden an Guinea-Bisseau?
letters word value = A
Welches Land grenzt im Süden an Guinea-Bisseau?
letters word value = B
Was ist die offizielle Sprache von GB? (english)
letters word value = C
Find the cache here:
N 11° 51.466 + A + B
W 015° 35.140 - C