Is it possible for a 22 yr old male to grow taller?

No. At 22 years of age your growth plates are fused. You are done growing.
Doubt it. Future growth is dependent on whether the growth centers in your long bones remain open. Most have closed by 18 yo in males. If your family has a history of delayed growth, these may be open and growth possible.An x-ray of your wrist and hand can detect your bone maturity.If the index is consistent with >18, you are done, if 14 you could grow more but this is not realistic.