# Problem Solved by Difficulty Timesink
1 Rocket science physics 16
2 Habitable exoplanets astronomy 7
3 Chaos math 2
4 DNA transcription biology 0
5 Caesar cipher computer science 0
6 Colorful resistors engineering 0
7 Correlation does not imply causation math 1
8 Molecular mass calculator chemistry 7
9 El NiƱo intensities earth science 1
10 Game of life biology 1
11 Finding earthquake epicenters earth science 0