Onclicking the checkbox related question has to display, i have out only two questions in data as of now.

On clicking the checkbox it is returing the correct Id and I am setting the id to show() but the panel is not displaying.

Can someone please look at the code

Controller
public class ProposalManagementController{
   
    private list <Quoting_Tool_Questions__c> qlist;
    public list <ProposalManagementWrapper> wrapperlist;
   
    public ProposalManagementController(){}
   
    public list <ProposalManagementWrapper> getQuestions(){
        try{
            wrapperlist =  new list <ProposalManagementWrapper> ();
            qlist = [select id,name,Question__c,Question_Order__c,Section_Name__c,Section_Order__c,Key__c,Dependent_Question__c  from Quoting_Tool_Questions__c ORDER BY Question_Order__c ASC];
            system.debug('Question -->' + qlist );
            for(Quoting_Tool_Questions__c q:qlist){
                wrapperlist.add(new ProposalManagementWrapper(q));
                system.debug('WrapperList --->' + wrapperlist);
            }
        }catch(exception e){e.getMessage();}   
        return wrapperlist;
    }
   
    public void displayPanel(){
   
    }
   
    public class ProposalManagementWrapper{
        public list <Quoting_Tool_Answeres__c> alist {get;set;}
        public Quoting_Tool_Questions__c q {get;set;}
        public boolean displayFlag{get;set;}
        public string Key{get;set;}
       
        public  ProposalManagementWrapper (Quoting_Tool_Questions__c  q){
            this.q = q;
            if(q.Dependent_Question__c == true){
                this.displayFlag = true;
            }else{
                this.displayFlag = false;
            }
           
            if(q.Key__c != null){
                Key = '-' + q.Key__c ;
            }else{
                Key = '';
            }
            this.alist = [select id,name,Answere__c,Key__c,Order__c,Quoting_Tool_Questions__c from Quoting_Tool_Answeres__c where Quoting_Tool_Questions__c =:q.Id  ORDER BY Order__c ASC];
        }
    }
}

Page:
<apex:page sidebar="false"  showHeader="false" controller="ProposalManagementController">
    <style type="text/css">
        .textfield{
            border-bottom:solid;
            border-width:1px;
            border-bottom-color:#E0E0D1;
            height:30px;

        }
    </style>   
    <script type="text/javascript">
         $(document).ready(function(){
             $('*[id*=block-]:visible').each(function() {
                 $(this).hide();
             });  
                
         });
        
         function panelRender(val){
             var id = "block-" + val;
             alert(id);
             $(id).show();
         }
    </script>    
    <apex:includeScript value="{!$Resource.Jquery}"/>
    <apex:form>
        <apex:pageBlock>
            <table id="thetable" style="width:100%;">
            <apex:repeat value="{!Questions}" var="wrapper">
                 <tr id="block{!wrapper.Key}">
                     <td class="textfield" >
                         <table style="width:60%;">
                             <tr>
                                 <td style="width:20%;" align="right">
                                     <apex:outputLabel for="timeframe"><b>{!wrapper.q.Question__c}</b></apex:outputLabel>
                                 </td>
                                 <td style="width:20%;" >
                                     <apex:repeat value="{!wrapper.alist}" var="a">
                                         <div>
                                             <apex:outputText value="{!a.Answere__c}" >
                                                 <apex:inputCheckbox title="{!a.Name}" value="{!a.Key__c}" onclick="panelRender('{!a.Key__c}')"/>
                                             </apex:outputText>
                                         </div>
                                     </apex:repeat>
                                 </td>
                             </tr>
                         </table>
                     </td>
                 </tr>
             </apex:repeat>
             </table>
        </apex:pageBlock>
    </apex:form>
</apex:page>