A girl, Alice, is walking through a mysterious forest and meets two strange creatures: a lion and a unicorn.
Each of them has a fixed pattern of telling the truth or lying:
Lion:
- Lies on Monday, Tuesday, Wednesday
- Tells the truth on Thursday, Friday, Saturday, Sunday
Unicorn:
- Lies on Thursday, Friday, Saturday
- Tells the truth on Sunday, Monday, Tuesday, Wednesday
They make the following statements:
- Lion: “Yesterday I was lying.”
- Unicorn: “Yesterday I was lying."
Determine the day of the week on which Alice met them.
Check if you were right - full answer with solution below.
Solution:
Step 1: Analyze the Lion’s statement
If Lion's statement is :
True: Today is Thursday, as only in this case, Lion is telling truth today and was lying yesterday.
False: Today is Monday, as only in this case, Lion is lying today and was telling a truth yesterday.
Step 2: Analyze the Unicorn’s statement
If Unicorn's statement is :
True: Today is Sunday, as only in this case, Unicorn is telling truth today and was lying yesterday.
False: Today is Thursday, as only in this case, Unicorn is lying today and was telling a truth yesterday.
The day is Thursday and only this satisfied both the conditions.