diff --git a/challenges/upper-intermediate-bonfires.json b/challenges/upper-intermediate-bonfires.json
index c09cb30da4..b4ab210cd2 100644
--- a/challenges/upper-intermediate-bonfires.json
+++ b/challenges/upper-intermediate-bonfires.json
@@ -39,6 +39,9 @@
         "Closures",
         "Details of the Object Model"
       ],
+      "solutions": [
+        "var Person = function(firstAndLast) {\n\n  var firstName, lastName;\n\n  function updateName(str) {    \n    firstName = str.split(\" \")[0];\n    lastName = str.split(\" \")[1];    \n  }\n\n  updateName(firstAndLast);\n\n  this.getFirstName = function(){\n    return firstName;\n  };\n  \n  this.getLastName = function(){\n    return lastName;\n  };\n  \n  this.getFullName = function(){\n    return firstName + \" \" + lastName;\n  };\n  \n  this.setFirstName = function(str){\n    firstName = str;\n  };\n  \n\n  this.setLastName = function(str){\n    lastName = str;\n  };\n  \n  this.setFullName = function(str){\n    updateName(str);\n  };\n};\n\nvar bob = new Person('Bob Ross');\nbob.getFullName();"
+      ],
       "type": "bonfire",
       "challengeType": 5,
       "nameCn": "",
@@ -80,6 +83,9 @@
       "MDNlinks": [
         "Math.pow()"
       ],
+      "solutions": [
+        "function orbitalPeriod(arr) {\n  var GM = 398600.4418;\n  var earthRadius = 6367.4447;\n  var TAU = 2 * Math.PI; \n  return arr.map(function(obj) {\n    return {\n      name: obj.name,\n      orbitalPeriod: Math.round(TAU * Math.sqrt(Math.pow(obj.avgAlt+earthRadius, 3)/GM))\n    };\n  });\n}\n\norbitalPeriod([{name : \"sputkin\", avgAlt : 35873.5553}]);\n"
+      ],
       "type": "bonfire",
       "challengeType": 5,
       "nameCn": "",
@@ -120,6 +126,9 @@
         "Array.reduce()"
       ],
       "type": "bonfire",
+      "solutions": [
+        "function pairwise(arr, arg) {\n  var sum = 0;\n  arr.forEach(function(e, i, a) {\n    if (e != null) {      \n      var diff = arg-e;\n      a[i] = null;\n      var dix = a.indexOf(diff);\n      if (dix !== -1) {\n        sum += dix;\n        sum += i;\n        a[dix] = null;\n      }  \n    }\n  });\n  return sum;\n}\n\npairwise([1,4,2,3,0,5], 7);\n"
+      ],
       "challengeType": 5,
       "nameCn": "",
       "descriptionCn": [],