diff --git a/exercise.js b/exercise.js
index da0af63..9db1c91 100644
--- a/exercise.js
+++ b/exercise.js
@@ -1,2 +1,62 @@
 // Good Luck! You got this 💪🏾
 // Write your code here.
+// 5 Write a function called 'describeCountry' which takes three parameters: country,population and capitalCity.
+function describecountry(country,population,capitalCity){
+    console.log(`${country}has ${population} million people and its captial city is ${capitalCity}`)
+}
+describecountry("Somaliland",3.5,"Hargeisa")
+// 6 Call the function 3 times with input data for 3 different countries. store the return values in 3 different 
+//variables and log them to the console.
+
+describecountry("Somalia",10.5,"Mogudisho")
+describecountry("Djbouti",1.5,"jbouti")
+describecountry("Bangladesh",166,"Dhaka")
+
+// 7 The world population is 7900 million people. Create a function called percentageOfWorld1 which recieves a 
+//population value and reutnrs the percentage of the world population that the given population represents.
+function percentageOfWorld(population,percentage){
+    console.log(`China has ${population} million people, so it's about ${percentage} of the world population`)   
+   }
+   percentageOfWorld(166,166/7900*100)
+
+//10 // Call percentageOfWorld1 for 3 populations of countries of your choice, store the results into variables, 
+//and log them to the console
+percentageOfWorld(1393,1393/7900*100)
+percentageOfWorld(331.9,331.9/7900*100)
+percentageOfWorld(125,125/7900*100)
+
+// 12 Create an array containing 4 population values of 4 countries of your choice and store it in a varaible 
+//called population
+let population = ["Soomaalilan","SaudiArabia","Malasia","Bangladesh"]
+    console.log(population)
+
+// 13 Create an array containing all the neighbouring countries of a country of your choice. 
+//Store the array into a varaible called neighbours
+
+let neighbouring = ["Djbouti","Ethiopia","Kenya","Yeman"]
+   console.log(neighbouring)
+   console.log(neighbouring.length)
+
+// Iteration: for loops
+// Console log one by one the countries inside the neighbours array.
+    for(i = 0; i<4; i++){
+        console.log(neighbouring[i])
+    }
+
+// Console log one by one the countries inside the neighbours array but this time in a reverse order.
+    for(i = 3; i>=0; i--){
+        console.log(neighbouring[i])
+    }
+
+//10 Do exercise 8 & 9 using while loop
+    let i = 0
+    while(i<4){
+     console.log(neighbouring[i])
+     i++
+}
+
+// let i = 3
+//     while(i>=0){
+//      console.log(neighbouring[i])
+//      i--
+//     }
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