The results are summarized as follows:
- First four multiples of \( 9 \): \( [9, 18, 27, 36] \)
- First six multiples of \( 5 \): \( [5, 10, 15, 20, 25, 30] \)
- Even multiples of \( 5 \): \( 3 \)
- Odd multiples of \( 5 \): \( 3 \)
- Is \( 56 \) a multiple of \( 7 \)? Yes, it is the \( 8^{th} \) multiple.
Thus, the final answers are:
\[
\boxed{[9, 18, 27, 36]}
\]
\[
\boxed{[5, 10, 15, 20, 25, 30]}
\]
\[
\boxed{3 \text{ (even)}, 3 \text{ (odd)}}
\]
\[
\boxed{56 \text{ is a multiple of } 7, \text{ specifically the } 8^{th} \text{ multiple.}}
\]