Answer:
What do you call the mother-in-law of your sister's husband?
Raise your right appendage high above your head. Turn your head to the right and you will smell this.
What has 4 fingers and a thumb, but is not living?
You might accuse someone living with a stolen identity of being this.
If there are three cups of sugar and you take one away, how many do you have?
If it’s information you seek, come and see me. If it’s pairs of letters you need, I have consecutively three. What am I?