Which are the OOTB reports which will give information about campaign effectiveness?

What is a joined report?

A UK user creates a task on a lead for an Indian user for 24/07/2012. The reminder for the
task is scheduled for13:00 on 24/07/2012.The difference between UK time & India time is
4.5 hours. When the India user logs in, he will see the reminder scheduled for 13:00 or 17:30?

Lead validation rule (like field Industry must have a value) always triggers when a lead is converted.

If this option is unchecked on Customize > Leads > Settings, ‘Enforce Validation and
Triggers from Lead Convert’ then the validation rules and triggers of account, contact &
opportunity are bypassed but the validation rules and triggers of lead execute.

While creating record type specifying associated process is compulsory (like Sales process
for Opportunity or Support process for Case or Lead process for Lead or Solution process
for Solution) OR while creating process specifying associated record type is compulsory?

What are the advantages of using Chatter Desktop over using the in-app Chatter?

An Apex Sharing Reason cannot be created on a custom object with the label ‘Manual
Sharing’ because the in-built standard sharing reason provided by Salesforce has the same
label, so it would give error
“An Apex Sharing Reason with this name already exists”

While converting a lead

A lead can have more than one values in the lead status picklist with the ‘Converted’
checkbox checked for them so that these values are available while converting the lead to
be assigned to the ‘Status’ picklist as the converted status.