You have two strings whose only known property is that when you light one end of either string it takes exactly one hour to burn. The rate at which the strings will burn is completely random and each string is different.

How do you measure 45 minutes?

What has 88 keys?

At my favorite fruit stand,
an orange costs 18,
a pineapple costs 27,
and a grape costs 15.
Using the same logic, can you tell how much a mango costs?

I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?

Complete the series by replacing "?" with the correct number.

ST ND RD TH '?'

An American nightclub called 'The Coconut Grove' had a terrible fire in which over 400 people died. A simple design flaw in the building led to a high death toll. Subsequently, regulations were changed to ensure that all public buildings throughout the country eliminated this one detail, which proved deadly. What was it?

What do you answer even though it never asks you questions?

What's a single-digit number with no value?

Can you find the missing piece of the Porsche?

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?