Enzymes are biological catalysts made of:

DNA replication occurs during which phase of the cell cycle?

A walks 10 km South, turns left and walks 5 km, turns right and walks 10 km, turns left and walks 5 km. How far and in which direction is A from the starting point?

Find next: 2, 3, 5, 7, 11, ?

Find odd one out: Swift, Slow, Rapid, Quick

Seven students A, B, C, D, E, F, G stand in a line. A is exactly in the middle. B is to the left of A. C is second to the right of A. D is at the right end. E is between B and A. F is not next to G. Who is at the left end?