You can use conditions or relevance to hide/show questions or groups:
1) manual.limesurvey.org/wiki/Setting_conditions
2) manual.limesurvey.org/wiki/Expression_Ma...ation.2FBranching.29
1) manual.limesurvey.org/wiki/Setting_conditions
2) manual.limesurvey.org/wiki/Expression_Ma...ation.2FBranching.29