42 Llamas
Based on the quest of the supercomputer Deep Thought to find the Ultimate Answer to the Ultimate Question of Life, the Universe and Everything without the benefit of actually knowing the question to begin with (from the Douglas Adams series of books "Hitchhiker's Guide to the Galaxy"), this speculates that llamas may also be involved and by default, are also the answer to everything.
What was Mike Piazza's carrer batting average? 42 llamas. Where are my carkeys? 42 llamas. Why is the sky blue? 42 llamas. Etc...