If it is chewing gum or flexible glue like double faced adhesive tape or Black & Decker glue ( full- purpose adhesive), and banana oil. use the volatile oil, but the carpet will be damaged, chloroform and hot water containing soda are the best. transformer oil and rosin water can also be used; if it is glass glue, acetic acid could be used(vinegar essence, nail color remover); if it is 502, it is afraid of heat and alkalis; if it is epoxy resin (combining of two kinds of glues), white vinegar), Fengyoujing could be used if you are afraid of pollute the air.