Scorpions In My House?
Anna, Eva and Tatiana visited my house one day. The following conversation took place:
Anna: Wow, this house has more than 100 scorpions!
Eva: No, I saw at most 100 scorpions in this house.
Tatiana: I know that I saw at least one scorpion.
If only one of these girls told the truth, how many scorpions are in my house?