The last time I ate mango I opened the pit and took the seed out. I put it in a plastic bag, sprayed some water in the bag, tied it shut and placed it in the cupboard above the fridge. Now, 3 week later I have a small mango tree :-)
@juliedduncan@ljmanning@ludwigsdiana@okvalle Tanks everyone for your comments. I am hoping to keep it alive and plant it but I don't know how it will go. It took me 2 years to manage to keep an avocado plant alive longer than 3 months (the one I have now is around 6 months old and is looking good). I'll update you on any developments ;-)