Tell me the funniest joke you ever heard.    

Has anyone had any interesting dreams lately?   

What is the difference between the elements of art and the principles of design?

Is telivisions soul purpose to tame our thirst for dreams?   

Should I use 'is' or 'was'? Maybe I was just lucky that all my previous supervisors were nice to me. But if ever I came across a bad one, maybe someone who "is/was" short-tempered, I don't think I would have any problem with that person.

Is it easier for you to read something upside down or read something backwards? Why?   

Is "shed secrets" correct? Does that mean "reveal secrets"? I looked it up in a few dictionaries but never found a satisfactory answer. So Can anyone help me with those questions? Thanks!

Is the following sentence correct? I have discovered that I am far more emotional than I have (or had) thought until now.

What is the difference between "owing to" and "due to" Owing to external influences, comapny A is now faced with urgent need.