For any given real $a, b, c$ solve the following system of equations:
$$\left\{\begin{array}{l}ax^3+by=cz^5,\\az^3+bx=cy^5,\\ay^3+bz=cx^5.\end{array}\right.$$
[i]Proposed by Oleksiy Masalitin, Bogdan Rublov[/i]
To solve the given system of equations:

\[
\left\{
\begin{array}{l}
ax^3 + by = cz^5, \\
az^3 + bx = cy^5, \\
ay^3 + bz = cx^5.
\end{array}
\right.
\]

we will analyze the system step by step.

1. **Assume \(x = y = z = 0\):**
   \[
   \left\{
   \begin{array}{l}
   a(0)^3 + b(0) = c(0)^5, \\
   a(0)^3 + b(0) = c(0)^5, \\
   a(0)^3 + b(0) = c(0)^5.
   \end{array}
   \right.
   \]
   This simplifies to:
   \[
   \left\{
   \begin{array}{l}
   0 = 0, \\
   0 = 0, \\
   0 = 0.
   \end{array}
   \right.
   \]
   Therefore, \(x = y = z = 0\) is a solution.

2. **Assume \(x, y, z \neq 0\):**
   We will divide each equation by the corresponding non-zero term to simplify the system.

   - From the first equation:
     \[
     ax^3 + by = cz^5 \implies \frac{ax^3}{cz^5} + \frac{by}{cz^5} = 1 \implies \frac{a}{c} \left(\frac{x}{z}\right)^3 + \frac{b}{c} \left(\frac{y}{z}\right) = 1.
     \]

   - From the second equation:
     \[
     az^3 + bx = cy^5 \implies \frac{az^3}{cy^5} + \frac{bx}{cy^5} = 1 \implies \frac{a}{c} \left(\frac{z}{y}\right)^3 + \frac{b}{c} \left(\frac{x}{y}\right) = 1.
     \]

   - From the third equation:
     \[
     ay^3 + bz = cx^5 \implies \frac{ay^3}{cx^5} + \frac{bz}{cx^5} = 1 \implies \frac{a}{c} \left(\frac{y}{x}\right)^3 + \frac{b}{c} \left(\frac{z}{x}\right) = 1.
     \]

3. **Assume \(x = y = z\):**
   Substitute \(x = y = z\) into the original system:
   \[
   \left\{
   \begin{array}{l}
   ax^3 + bx = cx^5, \\
   ax^3 + bx = cx^5, \\
   ax^3 + bx = cx^5.
   \end{array}
   \right.
   \]
   This simplifies to:
   \[
   ax^3 + bx = cx^5.
   \]
   Factor out \(x\):
   \[
   x(ax^2 + b) = cx^5 \implies ax^2 + b = cx^4.
   \]
   Rearrange the equation:
   \[
   cx^4 - ax^2 - b = 0.
   \]
   This is a quadratic equation in terms of \(x^2\):
   \[
   c(x^2)^2 - a(x^2) - b = 0.
   \]
   Let \(u = x^2\), then:
   \[
   cu^2 - au - b = 0.
   \]
   Solve for \(u\) using the quadratic formula:
   \[
   u = \frac{a \pm \sqrt{a^2 + 4bc}}{2c}.
   \]
   Since \(u = x^2\), we have:
   \[
   x^2 = \frac{a \pm \sqrt{a^2 + 4bc}}{2c}.
   \]
   Therefore:
   \[
   x = \pm \sqrt{\frac{a \pm \sqrt{a^2 + 4bc}}{2c}}.
   \]

   Since \(x = y = z\), the solutions for \(x, y, z\) are:
   \[
   x = y = z = \pm \sqrt{\frac{a \pm \sqrt{a^2 + 4bc}}{2c}}.
   \]

The final answer is \( \boxed{ x = y = z = 0 } \) or \(x = y = z = \pm \sqrt{\frac{a \pm \sqrt{a^2 + 4bc}}{2c}}\).