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