diff --git a/.gitignore b/.gitignore
index ee508f76..a4ad3bc7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,3 +8,4 @@ pom.xml
 .lein-deps-sum
 .lein-failures
 .lein-plugins
+/bin/
diff --git a/src/i_am_a_horse_in_the_land_of_booleans.clj b/src/i_am_a_horse_in_the_land_of_booleans.clj
index 66a18e7a..b7dee1c9 100644
--- a/src/i_am_a_horse_in_the_land_of_booleans.clj
+++ b/src/i_am_a_horse_in_the_land_of_booleans.clj
@@ -2,27 +2,53 @@
   (:refer-clojure :exclude [boolean]))
 
 (defn boolean [x]
-  ":(")
+  (if x
+    true
+    false))
 
 (defn abs [x]
-  ":(")
+  (if (> x 0)
+    x
+    (- x)))
 
 (defn divides? [divisor n]
-  ":(")
+  (if (= (mod n divisor) 0)
+    true
+    false))
 
 (defn fizzbuzz [n]
-  ":(")
+  (cond
+    (divides? 15 n)"gotcha!"
+    (divides? 5 n) "buzz"
+    (divides? 3 n) "fizz"
+    :else           ""))
 
 (defn teen? [age]
-  ":(")
+  (if (<= 13 age 19)
+    true
+    false))
 
 (defn not-teen? [age]
-  ":(")
+  (if (<= 13 age 19)
+    false
+    true))
 
 (defn generic-doublificate [x]
-  ":(")
+  (cond
+    (number? x)(* x 2)
+    (empty? x) nil
+    (list? x)(* (count x) 2)
+    (vector? x)(* (count x) 2)
+    :else true))
 
 (defn leap-year? [year]
-  ":(")
+  (cond
+    (divides? 100 year)
+    (cond
+      (divides? 400 year) true
+      :else false)
+    (divides? 4 year) true
+    :else false)) 
+
 
 ; '_______'