Please capitalize where necessary: talk to a group of friends or just one person as much as you like.
A: Talk to a group of friends or just one person as much as you like.

Q: pris111 consumer price index (2015=100) by commodity group and unit (2001m01-2016m08)

A: PRIS111 Consumer price index (2015=100) by commodity group and unit (2001M01-2016M08)

Q: while that depends on each individual site you visit and your device's internet connection, there is barely a site on the internet that does not use images.
A: While that depends on each individual site you visit and your device's Internet connection, there is barely a site on the Internet that does not use images.

Problem: you'll find all the information on documentation in the next section, but the concept that complicates things is that documentation supporting your cause should be legally translated into spanish (if it's necessary to understand it) and be legally recognized by the consular office, along with a handy broken link (which is meant to show you this document).
Can you repeat this sentence, but capitalize it?
Answer: You'll find all the information on documentation in the next section, but the concept that complicates things is that documentation supporting your cause should be legally translated into Spanish (if it's necessary to understand it) and be legally recognized by the Consular office, along with a handy broken link (which is meant to show you this document).

Text: how to save cost to make the best bathroom decoration, that is a dream for everyone.

Correct capitalization: How to save cost to make the best bathroom decoration, that is a dream for everyone.

Q: this requires an extensive storage capacity and an efficient logistics system.

A:
This requires an extensive storage capacity and an efficient logistics system.