Category:未解決問題
Template:未解決問題
Template:Unsolved problems
経済学上の未解決問題
List of unsolved problems in economics情報理論上の未解決問題
List of unsolved problems in information theory
地球科学上の未解決問題
List of unsolved problems in geoscience
懸賞金問題
Inducement prize contest
統計学上の未解決問題
List of unsolved problems in statistics
医学上の未解決問題
Unsolved problems in medicine
哲学上の未解決問題
List of philosophical problems
パトムスキー・クレーター
Patomskiy crater
天文学上の未解決問題
List of unsolved problems in astronomy未解決問題
Lists of unsolved problems