There are 100 civics questions on the naturalization test. During your naturalization interview, you will be asked up to 10 questions from the list of 100 questions. You must answer correctly at least six (6) of the 10 questions to pass the civics test. Several FREE study tools are available to help you prepare. To get started, see Study Materials for the Civics Test.
For more information the official blog of the USCIS: The Beacon