We don't have a prayer of answering this question until we know what numbers are in the set, and neither do you.
Every sixth number will be a multiple of 6, so you need at least six consecutive numbers to guarantee that one of them will be divisible by 6.
The answer depends on how many numbers are selected.The answer depends on how many numbers are selected.The answer depends on how many numbers are selected.The answer depends on how many numbers are selected.
5
There are 20 numbers with at least one five in the numbers from one to 120.
5
We don't have a prayer of answering this question until we know what numbers are in the set, and neither do you.
Every sixth number will be a multiple of 6, so you need at least six consecutive numbers to guarantee that one of them will be divisible by 6.
The answer depends on how many numbers are selected.The answer depends on how many numbers are selected.The answer depends on how many numbers are selected.The answer depends on how many numbers are selected.
5
There are 20 numbers with at least one five in the numbers from one to 120.
At least two.
To absolutely guarantee that at least two people were born on the same date you would need 367 people. However with 29 people the odds would be approaching unity but it does not guarantee this will be the case.
It is called probability. All numbers have an equal opportunity of being selected and if they run the lottery say for 100 billion times they all will probably be selected.
Saturn has at least 56 moons!
Guarantee has 3 syllables in it.
Infinitely many.