Ok, I was checking the answers of others and they answered the three questions so I'm going to make it too.

The best gift I ever given I think is a necklace made of lego pieces and somehow, it forms de first letter of my name, and I made to myself a the same necklace but instead of my letter, was the letter of my girlfriend those days. It was like de cliché necklace but made out of lego and with and exclusive design. It wasn't uncomfortable :D. She is not now my girlfriend so I don't have the necklace here to show the pics.

Finally, the best gift I ever received... I don't know, I love almost every present. I guess that it was my first cool computer like in 2009. Yeah, before that I was still using windows 90. But I also remember good presents associated to food, I REALLY LOVE FOOD, so I dont know what is it.