Si la Terre était un plum-pudding

Si la Terre était un plum-pudding, et que quelqu'un devait le manger à la vitesse d'un pouce cube toutes les dix secondes à raison de deux heures par jour, il faudrait 250 milliards de milliards d'années pour le manger ! 

Here's corrections to a couple of other things you've posted elsewhere:

Sure not ! But I believe in angel, who are unmaterial, but who are not died humans like the ghosts. Angels never have been human. An example : our guardian angel.

Certainly not! But I believe in angels, who are immaterial, but who are not humans who have died, like ghosts. Angels have never been human. For example: our guardian angel.

I think that love change with the persons. But if one of the lovers change by the bad side, that don't mean that love is destinated to stop. Each lover has to help the other when he is in a hard time of his life. That's the beauty of love : a mutual support.

I think that the way they love changes as people change. But if one of the lovers changes for the worse, that doesn't mean that love has to stop. Each lover has to help the other through hard times in life. That's the beauty of love: mutual support.

"What I prefer is to live with people I love. As I can't stay in my family all my life, I have to meet friends. And then, we can also find true love which we'll live. So, I think my way is not living alone."

This is an interesting sentence from the above you've written elsewhere (the rest of its context that you've written is good English):

"And then, we can also found true love which we'll live."

It might be you meant to write something like:

'And then, we can also find true love which we'll live out.'

Or:

'And then, we can also find true love which we'll live by.'

Or, it might be that 'found' would be right. That could be in the case that you meant that true love could be 'founded', or established on foundations, which would be a nice thought!

So, the meaning would be:

"And then, we can also establish the foundations of true love which we'll live out."