It is a difficult riddle and nobody has got it. Mireia, Elena and Judith have tried but they aren’t right.
Let’s see. The riddles was
There is a farmer and he has 3 things to take with him across the river.
The 3 things are a wolf, a chicken, and a bag of hay. The wolf and the chicken can’t be together because the wolf eats the chicken. The chicken and the hay can’t be together because the chicken eats the hay. The farmer can only transport 1 thing at a time. How does he get all the things across the river?
And the answer is:
Move the chicken first. Leave the cow in destination 2. Go back to destination 1, and take the hay to destination 2. Drop off the hay at destination 2, but travel back to destination 1 with the chicken. Leave the chicken at destination 1, and move the wolf at destination 2 and leave with the hay. Go back to destination 1, and move the chicken to destination 2. Now all three have been moved to destination 2 without one eating the other.