My Google Assistant is not speaking some basic question answers

[AC Question]

If I ask "how are you?" Google assistant replies so nicely but If i ask about the weather or some questions,like "who is there​president of USA?" It shows the results only but it doesn't read it.
I tried:
factory reseted my phone
Cleard Google App & Play services cache,data...
Uninstalled and then installed...
But it's not fixing still .

My phone:Xiaomi Mi5
Android 7.0
New version of Google app & Play services...

 

[belodion]

Sometimes the answer is in spoken words, other times a website is suggested. That's how it is for me, and I assume it's normal.