Hi All,
If any one finds difficulties in passing this challenge plz make changes in the VF page:
<apex:outputText value="{!sampleMergeField1}"/> <apex:outputText value="{!HTMLENCODE(sampleMergeField2)}" escape="false"/> <apex:outputText > {!sampleMergeField3} </apex:outputText> <script> document.write('{!JSINHTMLENCODE(sampleMergeField4)}'); </script> {!sampleMergeField5} <script> var x = '{!JSENCODE(sampleMergeField6)}'; </script> <apex:outputLabel value="{!HTMLENCODE(sampleMergeField7)}" escape="false"/>

Thanks,
Ram