Are these sentences correct?
I have found this in a website.
Bananas plus water results in faster weight loss.
Laying off exercise and allowing afternoon sweets reduces stress.
Appreciate the help.
I think it is ok. The complex "bananas plus water" is the subject of the verb and is taken to be singular. Similarly "laying off exercise and allowing afternoon sweets" is a concept that functions as a singular subject because BOTH things are to be done together. If you added a second concept then you would pluralize. Like "laying around watching t.v. and maintaining an active healthy life style end with same result: death". The verb "end" takes a plural subject because the two concepts are distinct, not to be combined.