1. The problem asks to determine whether the number 0 is even. 2. By definition, an even number is any integer that can be expressed as $2k$ where $k$ is an integer. 3. To check if 0 is even, we try to write it in the form $2k$. 4. Let $k=0$, then $2k = 2 \times 0 = 0$. 5. Since 0 can be written as $2 \times 0$, it satisfies the definition of an even number. 6. Therefore, 0 is an even number.