Table: how_its_made_episodes_5
Columns: series_ep
episode
segment_a
segment_b
segment_c
segment_d

Question: What is the highest episode of Wood Flutes segment c?
SQL: SELECT MAX("episode") FROM how_its_made_episodes_5 WHERE "segment_c" = 'wood flutes'

Question: What is Segment D of 20-08 series Ep.?
SQL: SELECT "segment_d" FROM how_its_made_episodes_5 WHERE "series_ep" = '20-08'