Question: What is the total number of E edges of the polyhedra with vertices V greater than 20?
SQL: SELECT COUNT("Edges E") FROM "2-148420-1" WHERE "Vertices V" > 20.0;

Question: What is the lowest Euler characteristic: V-E+F of a hexahedron or cube, which has less than 20 faces F, less than 30 edges E, and less than 8 vertices V?
SQL: SELECT MIN("Euler characteristic: V − E + F") FROM "2-148420-1" WHERE "Faces F" < 20.0 AND "Edges E" < 30.0 AND "Name" = 'hexahedron or cube' AND "Vertices V" < 8.0;