How many words can a pen with half refill write?

With the help clues provided in the image, can you find the 5 digit key?

Consider this: Arnold Schwarzenegger has a big one. Michael J. Fox has a small one. Prince doesn’t have one. The Pope has one but never uses it. Bill Clinton has one and uses it all the time. What is it?

Whats the next number in the below number sequence pattern.

What comes
Once in a Year
Twice in a Month
4 times in a Week
6 times in a Day

Sally lives in a place where six months of the year is mild summer and the temperature drops significantly the other six months. She owns a lake where there is a small island. She wants to build a house on the island and needs to get materials there. She doesn’t have a boat, plane, or anything to transport them to the island. How does Sally solve this problem?

How can you make a TV, a bed, a dog, and a car liquid?

When I asked a girl's name she told me her name is the date '07/09/2001'.

I thought for a few seconds and then I got her name. Do you?

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

Spelt forwards I’m what you do every day, spelled backwards I’m something you hate. What am I?