“各种各样”have several meanings."各种各样" = all sorts of /all kinds of/ a variety of There are some sentence for you to know it better as follow: The designer comes up with all kinds of new products that attract their customer. 那设计师设计出了各种各样的新产品，来吸引他的顾客。 There are all sorts of resources on the website. 这个网站有各种各样的资源。 A variety of studies show that the earth is warming. 各种各样的研究表明,地球正在变暖。 "各色各样"、“千式百样”、“各式各样” are similar to “各种各样”. Now let me tell you something about "什么也不会说".You can use this phrase in these situations below: When someone tell you a secret,he ask you to keep the secret.You can use it. A:请帮我保守这个秘密。(Please help me to keep this secret.) B:没问题。我什么也不会说。(No problem.I won't say anything.) Well,another situation you can use it. For example Mother:我的宝宝二岁了,但他什么也不会说 .(My kid has already 2 years old,but he can't speak. ) Doctor:不要担心。(Don't worry about it.) That's all.Hope it can help you.Have a nice day,dude.

“什么也不会说”this sentence used in deferent situations has deferent mean, eg: " I could say nothing " 各种各样 "means “all kinds of" or "various "

Context needed!