Question: 1. Attempt to embed K5 on the torus. Is it possible?
2. Attempt to embed K5 on the M¨obius band. Is it possible?
3. Attempt to embed K3,3 on the torus. Is it possible?
4. Attempt to embed K3,3 on the M¨obius band. Is it possible?
5. Attempt to embed the Petersen graph on the torus. Is it possible?