| Km of border | Answer | % Correct |
|---|---|---|
| 1912km | Germany | 100%
|
| 507km | Lithuania | 88%
|
| 984km | Czechoslovakia | 86%
|
| 1412km | USSR | 79%
|
| 180km | Hungary | 78%
|
| 349km | Romania | 77%
|
| 109km | Latvia | 75%
|
| 541km | Slovakia | 54%
|
| 121km | Danzig | 46%
|