[Brain challenge] Think again

[misumon]

this is quite funny icause i used to solve tis kind of puzzels in my childhood anyways the answer is quite more complex then anyone thinks .

There are two possibilities going on here the yam goat and the lion will not do anything in the presence of The farmer .

So , The solution should be like

first take the goat across the river

second take the yam across the river

and bring back the goat with the farmer on the other side ( so that the goat can't eat the yam )

third put the goat down and bring the lion back to the other side ( because lion dosent eat yam )

fourth come back and take the goat on the other side .

And so all has been crossed the river without losing any.

MI Sumon.