1.What is the purpose of the `each_cons` method in Enumerables?

2.How can you find the maximum value in an Enumerable?

3.What is the result of the following code?

arr = [1, 2, 3, 4, 5]
result = arr.partition { |x| x.odd? }.map(&:sum)
puts result.join(',')

4.How can you sort an Enumerable in descending order?

5.What will be printed by the following code?

arr = [1, 2, 3, 4, 5]
result = arr.each_cons(2).map { |x, y| x + y }
puts result.join(',')

6.How do you find the first n elements in an Enumerable?

7.What will be printed by the following code?

arr = [1, 2, 3, 4, 5]
result = arr.sort_by { |x| -x }
puts result.join(',')

8.What is the purpose of the `each_with_index` method in Enumerables?

9.How can you transform elements in an Enumerable into key-value pairs?

convert_to_hash

10.What does the `drop` method do in Enumerables?

11.How do you check if two Enumerables are equal in Ruby?

12.Which method is used to check if all elements in an Enumerable are of a certain class?

13.What does the `take_while` method do in Ruby Enumerables?

14.What does the `partition` method do in Ruby Enumerables?

15.What does the `slice_when` method do in Ruby Enumerables?

16.Which method is used to find the first and last elements of an Enumerable?

17.How can you find the index of the last occurrence of a specific element in an Enumerable?

18.What is the purpose of the `inject` method in Ruby Enumerables?

19.What is the purpose of the `slice_before` method in Enumerables?

20.What does the `slice_after` method do in Ruby Enumerables?