diff --git a/subjects/get-some-time/README.md b/subjects/get-some-time/README.md
index 76af4cb0..eb6f1d6d 100644
--- a/subjects/get-some-time/README.md
+++ b/subjects/get-some-time/README.md
@@ -4,8 +4,11 @@
 
 Create a function `firstDayWeek` that receives a week of the year
 (from 1 to 53) and a year (as a string), and returns the first day
-of that week, in the format: 'dd-mm-yyyy'. By beginning of the week
-we mean the monday of that week.
+of that week, in the format: 'dd-mm-yyyy'.
+
+In this task you have to assume that the `week #1` is in all cases the week which contains the 1st of January.
+
+By beginning of the week we mean the monday of that week.
 
 If the first week is requested and it starts on the previous year
 of the presented one, it should return the first day of the year.
diff --git a/subjects/make-your-game/README.md b/subjects/make-your-game/README.md
index 98ebb246..e9feaeae 100644
--- a/subjects/make-your-game/README.md
+++ b/subjects/make-your-game/README.md
@@ -30,7 +30,7 @@ You must not use frameworks or canvas, the game must be implemented using plain
 
 ### Instructions
 
-Animation must have consistent motion, so in order to have a smooth animation (without interruptions or so called jank animation) you must achieve the special number, [**60 FPS**](https://blog.algolia.com/performant-web-animations/). You can see more about performance [here](../good-practices/README.md)
+Animation must have consistent motion, so in order to have a smooth animation (without interruptions or so called jank animation) you must achieve the special number, [**60 FPS**](https://www.algolia.com/developers-tech-blog/code-and-deep-dives/performant-web-animations/). You can see more about performance [here](../good-practices/README.md)
 
 In order to play the game the player must only use the keyboard. The controls must be smooth, in other words you should not need to spam a key to take actions in the game. Instead, for example, if a key is kept pressed, the player must continue to do the relevant action. If the key is released the player should stop doing the action.
 
diff --git a/subjects/real-time-forum/audit/README.md b/subjects/real-time-forum/audit/README.md
index c7c52e6f..14822636 100644
--- a/subjects/real-time-forum/audit/README.md
+++ b/subjects/real-time-forum/audit/README.md
@@ -1,6 +1,6 @@
 #### Functional
 
-###### Has the requirement for the allowed packages been respected? (Reminder for this project: only [standard packages](https://golang.org/pkg/))
+###### Has the requirement for the allowed packages been respected? (Check the [allowed packages](../README.md))
 
 ###### Do you need to register/login in the forum to use it?
 
diff --git a/subjects/real-time-forum/typing-in-progress/audit.md b/subjects/real-time-forum/typing-in-progress/audit.md
index dfb1169a..02f7331c 100644
--- a/subjects/real-time-forum/typing-in-progress/audit.md
+++ b/subjects/real-time-forum/typing-in-progress/audit.md
@@ -1,6 +1,6 @@
 #### Functional
 
-###### Has the requirement for the allowed packages been respected? (Reminder for this project: only [standard packages](https://golang.org/pkg/))
+###### Has the requirement for the allowed packages been respected? (Check the [allowed packages](README.md))
 
 ##### Open two browsers (ex: Chrome and Firefox or private windows) and log in with different users in each one. With one user start typing.
 
diff --git a/subjects/rebecca-black/README.md b/subjects/rebecca-black/README.md
index 6d78ca19..c32f52e9 100644
--- a/subjects/rebecca-black/README.md
+++ b/subjects/rebecca-black/README.md
@@ -6,7 +6,7 @@ Create the following functions:
 
 - `isFriday` returns true if the date is a friday
 - `isWeekend` returns true if the date is a day of the weekend
-- `isLeapYear` returns true if the year is a leap year
+- `isLeapYear` returns true if the year of the date is a leap year
 - `isLastDayOfMonth` returns true if the date is the last day of the month
 
 ### Notions
diff --git a/subjects/using-map/README.md b/subjects/using-map/README.md
index 4eea45d2..9329e93a 100644
--- a/subjects/using-map/README.md
+++ b/subjects/using-map/README.md
@@ -2,8 +2,7 @@
 
 ### Instructions
 
-- Create a function named `citiesOnly` which takes an array of objects
-  and which return an array of strings from the key `city`.
+- Create a function named `citiesOnly` which takes an array of objects and which return an array of strings from the key `city`.
 
 #### Example:
 
@@ -21,7 +20,7 @@ citiesOnly([
 ```
 
 - Create a function named `upperCasingStates` which takes an array of strings
-  and which Upper Case each words of a string. \
+  and which Upper Case the first letter of each word in a string. \
   The function returns then an array of strings.
 
 #### Example: