Practice questions on Boolean and more

puts "Enter first number"
first = gets.chomp.to_i
puts "Enter second number"
second = gets.chomp.to_i
puts first == second

puts "first number"
first = gets.chomp.to_i
puts "second number"
second = gets.chomp.to_i
puts "third number"
third = gets.chomp.to_i
all = first == second && second == third && third == first
puts "All are equal : #{all}"
any = first == second || second == third || third == first
puts "Any of three are equal: #{any}"

puts "Enter first number"
first = gets.chomp.to_i
puts "Enter second number"
second = gets.chomp.to_i
sum = first+second
puts "Sum is greater than 5 : #{sum>5}"
puts "Sum is equal to 5 : #{sum==5}"
puts "Sum is lesser than 5 : #{sum<5}"

puts !(true and true)
puts true || true
puts !(false && false)
puts false && false

pm = 35
marks = gets.chomp.to_i
puts "Marks is greater than passing marks : #{marks>pm}"