diff --git a/intro/01_basics/family.rb b/intro/01_basics/family.rb
index b20700e..aca4f21 100644
--- a/intro/01_basics/family.rb
+++ b/intro/01_basics/family.rb
@@ -6,3 +6,7 @@
 
 # Your code goes here
 
+age_sum = mom + dad + john + mary
+result = (mom * dad)/(john - mary)
+puts "Sum of ages = #{age_sum}"
+puts "Result = #{result}"
\ No newline at end of file
diff --git a/intro/02_control_flow/names.rb b/intro/02_control_flow/names.rb
index e360f0d..298567e 100644
--- a/intro/02_control_flow/names.rb
+++ b/intro/02_control_flow/names.rb
@@ -6,3 +6,12 @@
 
 # Your code goes here
 
+avg_length = (name1.length + name2.length + name3.length + name4.length)/ 4
+puts "What is your name"
+my_name = gets
+
+if (my_name.length < avg_length.size)
+    puts "#{my_name} is shorter than average"
+else
+    puts "#{my_name} is longer than average"
+end
diff --git a/intro/03_loops/fibonacci.rb b/intro/03_loops/fibonacci.rb
index a81c6fa..4128557 100644
--- a/intro/03_loops/fibonacci.rb
+++ b/intro/03_loops/fibonacci.rb
@@ -2,3 +2,7 @@
 
 # Your code goes here
 
+def fibo(n)
+    n <= 2 ? 1 : fibo(n-1) + fibo(n-2)
+  end
+  p (1..10).map{|x| fibo(x)}
\ No newline at end of file
diff --git a/intro/04_data_structures/queen.rb b/intro/04_data_structures/queen.rb
index 9d0ca4e..1cae3cf 100644
--- a/intro/04_data_structures/queen.rb
+++ b/intro/04_data_structures/queen.rb
@@ -1,9 +1,6 @@
 # A little bit of classic rock
 
-lyrics = "Is this the real life?"\
-         "Is this just fantasy?"\
-         "Caught in a landslide,"\
-         "No escape from reality."
+lyrics = "Is this the real life?\nIs this just fantasy?\nCaught in a landslide,\nNo escape from reality."
 
 # Your code goes here
-
+puts lyrics.each_char.tally #=> {"I"=>2, "s"=>8, " "=>13, "t"=>7, "h"=>4, "i"=>6, "e"=>7, "r"=>3, "a"=>8, "l"=>5, "f"=>3, "?"=>2, "\n"=>3, "j"=>1, "u"=>2, "n"=>3, "y"=>2, "C"=>1, "g"=>1, "d"=>2, ","=>1, "N"=>1, "o"=>2, "c"=>1, "p"=>1, "m"=>1, "."=>1}