1 What denomination is the Church of Christ?
We are not a denomination because there are none in the bible.
Acts11:26 And the disciples were first called Christians in Antioch
 
2. Can I be a Christian without being baptized?  
No, All Christians must be  baptized. 
Mark 16:16 He who believes and is baptized will be saved
 
3. Who is the head of the church?
Ephesians 5:23  For the husband is the head of the wife as Christ is the head of the church, his body, of which He is the Savior.
 
4. Will I still have problems as a Christian?, 
Yes nobody, Christian or non Christian, is exempt from problems. 
John 16:33 In this world you will have trouble. But take heart! I have overcome the world.
 
 
5. Why do Christians meet on  Sunday?
The church met on the first day of the week. Acts 20:7 On the first day of the week we came together to break bread (the Lord's Supper).
 
6. Is it proper to give money to the Church?
1 Corinthians 16:2 On the first day of every week,each one of you should set aside a sum of money in keeping with your income, saving it up so that when I come no collections will have to be made.
 
7. How much should I give to the church?
Leviticus 27:30  A tithe of everything from the land, whether grain from the soil or fruit from the trees,belongs to the Lord; it is holy to the Lord. 
Leviticus 27:32 Every tithe of the herd and flock - every tenth animal that passes under the shepard's rod - will be holy to the lord.
 
8. Where does the Bible say Jesus was born on December 25? 
The actual date of Christ's birth was never recorded, so you will not find it in the Bible. We can only estimate the time of year according to events that happened at the time of Christ's birth. Jesus never commanded anyone to celebrate his birthday as it is done today.