これはなんと言いますか （kore wa nan to iimasu ka) - What is this called?
これの名前はなんですか (kore no namae wa nan desu ka) - What's the name of this?
I also would like to know if I should use です in this type of questions?
Well, that depends a lot on how polite/casual do you wanna be, you can drop it if you're talking to a friend or someone who you can be casual with!
The basic rule is that you should just use です after a noun or a na-adjective... but you can use after the explanatory particle の as well, eg:
(あなたは)どこに行くのですか (anata wa doko ni iku no desu ka) Where are you going? (Ended with the explanatory particle so we could use です)
(あなたは)何を食べました？(anata wa nani wo tabemashita) What did you eat? (we ended with a verb, therefore no need for です)
彼は静かな人ですか (kare ha shizuka na hito desu ka) Is he a quiet person? (We ended with a noun 人 so we need desu, since we wanna be a bit more polite)
I put the "anata wa" in parentheses because in japanese we usually omit it if it is obvious by the context...
You'll be able to find tons of questions here about the usage of です, also you can just google it too, it's not that complicated to be honest ^^
How do you know when to useですor います？and when to use the particles はor の？