In cricket what is return crease?

Answer 1

A return crease is drawn on each side of each set of the stumps, along each side of the pitch (so there are four return creases in all, one on either side of both sets of stumps). The return creases lie perpendicular to the popping crease and the Bowling crease, 4 feet 4 inches (1.32 m) either side of and parallel to the imaginary line joining the centres of the two middle stumps. Each return crease terminates at one end at the popping crease but the other end is considered to be unlimited in length and must be marked to a minimum of 8 feet (2.44 m) from the popping crease.

The return creases are primarily used to determine whether the bowler has bowled a no ball. To avoid a no ball, some part of the bowler's back foot in the delivery stride must land within and not touching the return crease.