53-6-1 Good consideration, acts constituting. 53-6-2 Legal or moral obligation as good consideration. 53-6-3 Instrument as evidence of consideration. 53-6-4 Burden of proof to invalidate sufficient consideration. 53-6-5 Lawful consideration required. 53-6-6 Illegality of consideration, effect. 53-6-7 Executed or executory consideration, effect. 53-6-8 Executory consideration--Determination of amount. 53-6-9 Impossibility of ascertaining consideration, effect. 53-6-10 Effect of impossibility of ascertaining consideration--Possible of execution on face. 53-6-11 Measure of consideration, ascertainment.