都 in the first sentence means no just one things. The speaker means I want to know what things the responder would do before going to work. 都 in the second sentence I can't explain it in grammar because I think it just a idiomatic usages. 些 also means more than one. You can understand as some in English. 些 is not a single word and people always say 一些。

In these both sentences, the use of 都 are exactly the same. comparing A.我上班以前都得去公园遛狗呢。Usually, I have to walk the dog before going to work. B.我上班以前得去公园遛狗呢。 I have to walk the dog before going to work. sentence A means every time before going to work, I have to walk the dog. sentence B means today or the time depends on the context of the conversation, just once. 些：some, any this sentence can also be like 你上班以前都做什么? here with or without 些 are no big difference basically, both of these two sentences can be ended with or without 呢 你上班以前都做些什么呢？ 我上班以前都得去公园遛狗呢。 most of the time, if you are not sure about how to use 呢， let's say, without having 呢 would be easy to handle 呢，吗，吧 etc. are used as grammatical mood, most of the time you can ignore them, 吗 are most commonly used in the end of some questions，like 你好吗?(how do you do?) 你高兴吗?(Are you happy?)

都 means 'often' , 些 means some, so there may be a couple of things that you often do before you go to work

you want to speak hindi