diff --git a/Prequalification_Challenges/business_dev/README.md b/Prequalification_Challenges/business_dev/README.md
index f613de8..afda24c 100644
--- a/Prequalification_Challenges/business_dev/README.md
+++ b/Prequalification_Challenges/business_dev/README.md
@@ -8,8 +8,8 @@ Requirements to be included in the .pdf document to pass:
 2. Executive summary: What is being solved here, why do you initiate the web3 business?
 3. Product description and explanation of the solution with technical terms
 4. Team, roles and responsibilites
-5. Financial planning for the first year
-6. Roadmap to your self-sustaining project
+5. Financial planning for the first year (with strong focus on what products, services will bring income to the project)
+6. Roadmap to your self-sustaining project (with strong focus on revenue calculations)
 
 We recommend to create a plan for something you want to build during the hackathon. If you already have a team in your mind, you can submit the same plan together, but we will put a way harder scoring on you, as you are not doing that alone.
 
diff --git a/Prequalification_Challenges/entry_solidity/README.md b/Prequalification_Challenges/entry_solidity/README.md
index de20eb6..5e22c54 100644
--- a/Prequalification_Challenges/entry_solidity/README.md
+++ b/Prequalification_Challenges/entry_solidity/README.md
@@ -1,9 +1,9 @@
 ## You can figure it out - Entry Solidity challenge
 
-Figure out the flag by using the deployed Solidity DCTF smart contract. The goal is to find the password for the latest challenge started and insert it into the flag format, for example PC{IfoundIT}. Of course this is not the correct one, but if you look at the code and the explorer, even a business mind can find it :)
+TBA
 
-Link: https://moonbase.moonscan.io/address/0x70f0cec3c99103113d96ed8ad82ae6a8d9a735a0#code
+Link to smart contract: TBA
 
-_Keccak256: 0x2a2b9543f5867d51151a817d282fbb3abf0e763484f23867ca238f680802e9ab_
+_Keccak256: _
 
 _Challenge author: six_
diff --git a/Prequalification_Challenges/gandalf_blockchain/README.md b/Prequalification_Challenges/gandalf_blockchain/README.md
index ebeb2e7..10e3252 100644
--- a/Prequalification_Challenges/gandalf_blockchain/README.md
+++ b/Prequalification_Challenges/gandalf_blockchain/README.md
@@ -1,8 +1,8 @@
-## Implement Gandalf's blockchain
+## Implement Gandalf's blockchain (AI related)
 
 You need to reveal Gandalf's 8 words and create a chain of blocks with them: https://gandalf.lakera.ai/
 
-Task is the create a local blockchain (no consensus/networking needed here):
+Task is the create a local blockchain (no consensus or networking needed here, just the process of block creation):
  - Beat Gandalf AI game, find all the 8 words. Put them in order. Each one of them will be the data in your block.
  - Use | as delimiter between the words and the hash. Between the word and the hash, there is a - sign.
         - How this looks like: GENESIS|WORD1-HASH|WORD2-HASH|WORD3-HASH
diff --git a/Prequalification_Challenges/hidden_in_rust/README.md b/Prequalification_Challenges/hidden_in_rust/README.md
index 34c0752..8c50bee 100644
--- a/Prequalification_Challenges/hidden_in_rust/README.md
+++ b/Prequalification_Challenges/hidden_in_rust/README.md
@@ -1,4 +1,4 @@
-## You get rusty from this challenge
+## Get rusty from this old challenge
 
 Yes, I know that you know... if you have played CTFs before this is a nobr4in3r. Otherwise just look at the binary. Now you know why this challenge is rusty?
 
diff --git a/Prequalification_Challenges/hidden_in_rust/too_Easy b/Prequalification_Challenges/hidden_in_rust/too_Easy
index 526c016..7ad98bf 100755
Binary files a/Prequalification_Challenges/hidden_in_rust/too_Easy and b/Prequalification_Challenges/hidden_in_rust/too_Easy differ