Infernape will learn Close Combat at Level 41.
No
Riolu doesn't learn Close Combat, however Lucario learns Close Combat at Lv 42 (DPPt, HGSS) and Lv 55 (BW,BW2).
staraptor can learn it.
My personal favorite is staraptor because it learns brave bird and close combat but it is really up to you
Infernape will learn Close Combat at Level 41.
When u evolve it into infernape then it automatically learn close combat.
Floatzel cannot learn Hydro Pump.
Because Staraptor does not learn Close Combat until Level 34, and Staravia cannot learn Close Combat at all without cheating. To make Staraptor learn/re - learn Close Combat, take it and a Heart Scale to the Move Tutor in Pastoria City
Hariyama learns Close Combat at level 52.
heracross learns close combat at lv.37
Cobalion learns Close Combat at level 73.
No it can't learn close combat, the unova Pokemon that learn it are sawk, the musketeer legendaries and meloetta in pirouette forme.
No
Floatzel does not learn ice punch. Floatzel does not learn any ice type attacks naturally and must learn ice type moves via TM.
heracross learns close combat at a level of 37.
Gallade learns close combat at level 53