When you post a question on here, try and give us as much information as possible. Dates, budget, interests, how many people in your group, if you are traveling with kids, how old are they, and so on. The more info you give, the better of an answer you will get. So many of the posts lately have been just one sentence and this makes it hard for us to guess what you want.
Scroll through the Helpline a bit and see if your answer is already there. Things like where should I get my Euro, what is there to see in Paris or Munich or Berlin, which castle should I visit, how long does the train take from Frankfurt to Paris, and so on. Take a look at the Graffiti Wall and see what kind of information is on there that will be helpful for you. If you do not have a guide book, at least spend a bit of time in your local library looking up your potential destinations or look online. Use Google to look at the towns and cities or castles you want to visit.
You have space on here to post quite lengthy questions, so you are not limited to using just 100 letters. We all like helping, but do try to do a bit of research first.