flor dur
You may say 'sekushii na ashi.'
セクシーな足 Sekushī na ashi
deux jambes
Nihyaku
Robins have 2 legs in all or as i say in total
taishite / tameni those are the two words translated from English to Japanese for 'for'.
You may say 'wakarimasu ka,' written in Japanese as: 分かりますか
nibanme no hahaoya
A squid has eight legs with two feeding tentacles
pigeons ont les jambes
二百 ni hyaku
Not entirely, no. It'd be better to say "there's a pain in my legs". To say "my legs are painful", is to say "my legs can hurt people", pretty much.