Yes, if it is done without logging in and from a dynamic IP. This search can still be traced, but not easily.
You can browse twitter anonymously my simply searching for a certain person on google, for example, if I search for Ellen DeGeneres, it will take me to her twitter page/profile; from there, you can search for other people and browse the trends. However, this way, you won't be able to post updates(tweets), retweet or like stuff. Other than that, you may simply create an account with a username without including a picture of yourself, which would be, I guess, anonymous enough.
If the account is not protected then you can view it without anyone knowing.
Yes there is a search box at the top (new Twitter) or at the right hand side (old Twitter)
You should search for her on Twitter.
Just go to twitter.com or search twitter on a search engine (eg. google or bing) and click on the twitter link.
You can search for a hashtag without using twitter by typing the hashtag on Google.
No
search him on twitter if he is there then make your twitter account
The twitter handle is @7sur7. This is according to a search on twitter. It is recommended that a user of twitter should double check this handle before using it on twitter.
Her facebook.. or her twitter (search daniellebinder on twitter)
there are a lot of Justin bieber fanclubs on twitter, just search on the twitter website for some : ]
Sometimes, it depends how well your twitter account is protected and how many people search you. ;)