Skip to content
OmidBI Logo – Expert in Power Query, Excel, and Business Intelligence Solutions

OmidBI

  • By Difficulty
    • ⭐️ Beginner
    • ⭐️⭐️ Easy
    • ⭐️⭐️⭐️ Intermediate
    • ⭐️⭐️⭐️⭐️ Advanced
    • ⭐️⭐️⭐️⭐️⭐️Expert
    • ⭐️⭐️⭐️⭐️⭐️⭐️Complex
  • By Topic
    • Advanced Mathematics Problem
    • Aggregation & Summarization
    • Column Splitting
    • Column Transformation
    • Custom Grouping
    • Data Cleaning
    • Data Transformation
    • Date & Time Handling
    • Financial Problems
    • Indexing & Ranking
    • Merging & Joining
    • Missing Values
    • Pivot & Unpivot
    • Text Processing
  • By Creator
    • Omid Challenges
    • ExcelBI Excel Challenges
    • ExcelBI Power Query Challenges
    • Crispo Challenges
  • By Software
    • DAX Challenges
    • Excel Challenges
    • Excel VBA Challenges
    • Google Sheets Challenges
    • Office Script Challenges
    • Power Query Challenges
    • Python Challenges
    • R Challenges
    • SQL Challenges
  • Books
    • 96 Common Challenges in Power Query
Home » Challenges » By Difficulty » ⭐️⭐️⭐️ Intermediate » Page 7

⭐️⭐️⭐️ Intermediate

Moderate difficulty level.

Encrypt Using Bifid Cipher
Posted in
  • ExcelBI Excel Challenges
  • Text Processing
  • ⭐️⭐️⭐️ Intermediate

Encrypt Using Bifid Cipher

Challenge No. 437: Bifid Cipher with Keyword
Suppose we want to encrypt the message “BATTLE” and keyword is “ROTORS”.
Solved using: Python in Excel.

October 6, 2025July 23, 2025
Match Deliveries with Calendar Dates
Posted in
  • Date & Time Handling
  • ExcelBI Power Query Challenges
  • Merging & Joining
  • ⭐️⭐️⭐️ Intermediate

Match Deliveries with Calendar Dates

Challenge No. 186: Merge both the tables.
Solved using: Python in Excel.

October 6, 2025July 14, 2025
Extract Ending Pattern Group
Posted in
  • Custom Grouping
  • ExcelBI Power Query Challenges
  • Merging & Joining
  • Text Processing
  • ⭐️⭐️⭐️ Intermediate

Extract Ending Pattern Group

Challenge No. 184: Extract the last group of alphabets followed by numbers in each Text and concat them with a dash in between for each Set.
Solved using: Python.

October 4, 2025July 14, 2025
Max Monthly Sales Change
Posted in
  • ExcelBI Power Query Challenges
  • ⭐️⭐️⭐️ Intermediate

Max Monthly Sales Change

Challenge No. 180: List the total sales, maximum change in sales month on month basis (absolute value) and From and To months when this maximum change occurred.
Solved using: Python.

September 30, 2025July 14, 2025
Find Disagreeing Leap Years
Posted in
  • ExcelBI Excel Challenges
  • ⭐️⭐️⭐️ Intermediate

Find Disagreeing Leap Years

Challenge No. 422: Revised Julian Calendar Leap Year Rules
1.
Solved using: Python in Excel.

September 29, 2025July 23, 2025
Track Org Role Changes
Posted in
  • ExcelBI Power Query Challenges
  • ⭐️⭐️⭐️ Intermediate

Track Org Role Changes

Challenge No. 178: Create a corresponding row in result table if there is a change in either role or org.
Solved using: R.

September 28, 2025July 14, 2025
Find Reverse-Divisible Non-Palindromes
Posted in
  • ExcelBI Excel Challenges
  • ⭐️⭐️⭐️ Intermediate

Find Reverse-Divisible Non-Palindromes

Challenge No. 419: Reverse a number.
Solved using: Python in Excel.

September 27, 2025July 23, 2025
Split and Running Total Rows
Posted in
  • Column Splitting
  • ExcelBI Power Query Challenges
  • Missing Values
  • ⭐️⭐️⭐️ Intermediate

Split and Running Total Rows

Challenge No. 176: Generate the result table from problem table.
Solved using: Python in Excel.

September 27, 2025July 14, 2025
Generate Number Outline Sequence
Posted in
  • ExcelBI Excel Challenges
  • ⭐️⭐️⭐️ Intermediate

Generate Number Outline Sequence

Challenge No. 416: Generate the number outlining.
Solved using: R.

September 26, 2025July 23, 2025
Render ASCII US Flag
Posted in
  • ExcelBI Excel Challenges
  • ⭐️⭐️⭐️ Intermediate

Render ASCII US Flag

Challenge No. 404: Generate US ASCII flag.
Solved using: Python.

September 20, 2025July 23, 2025

Posts pagination

Previous 1 … 6 7 8 … 23 Next
  • 96 Common Challenges in Power Query
  • Advanced Mathematics Problem
  • Aggregation & Summarization
  • Books
  • Column Splitting
  • Column Transformation
  • Crispo Challenges
  • Custom Aggregation & Summarization
  • Custom Grouping
  • Data Cleaning
  • Data Transformation
  • data validation
  • Date & Time Handling
  • Excel Challenges
  • ExcelBI Excel Challenges
  • ExcelBI Power Query Challenges
  • Financial Problems
  • Indexing & Ranking
  • Merging & Joining
  • Missing Values
  • Omid Challenges
  • Pivot & Unpivot
  • Power Query Challenges
  • Python Challenges
  • Text Processing
  • ⭐️ Beginner
  • ⭐️⭐️ Easy
  • ⭐️⭐️⭐️ Intermediate
  • ⭐️⭐️⭐️⭐️ Advanced
  • ⭐️⭐️⭐️⭐️⭐️Expert
  • ⭐️⭐️⭐️⭐️⭐️⭐️Complex

BYROW CHAR CODE CONCAT DROP FILTER HSTACK IF IFERROR INDEX LAMBDA LEFT LEN LET List.Distinct List.Transform LOOKUP MAP MATCH MAX MID MONTH Python Python Automation Python for Data Analysis Python for Excel REDUCE ROW ROWS SCAN SEQUENCE SORT SUBSTITUTE Table.AddColumn Table.Group Table.SelectRows TAKE Text.Combine Text.Split TEXTJOIN TEXTSPLIT TOCOL UNIQUE VSTACK XLOOKUP

Recent Posts

  • Max Total on Consecutive Days
  • Extract Valid Year Ranges
  • Swap Grid Diagonals
  • Pivot with Total Line
  • Remove One Letter Palindrome

Recent Comments

No comments to show.
Copyright © 2026 OmidBI.
Powered by WordPress and HybridMag.
  • By Difficulty
    • ⭐️ Beginner
    • ⭐️⭐️ Easy
    • ⭐️⭐️⭐️ Intermediate
    • ⭐️⭐️⭐️⭐️ Advanced
    • ⭐️⭐️⭐️⭐️⭐️Expert
    • ⭐️⭐️⭐️⭐️⭐️⭐️Complex
  • By Topic
    • Advanced Mathematics Problem
    • Aggregation & Summarization
    • Column Splitting
    • Column Transformation
    • Custom Grouping
    • Data Cleaning
    • Data Transformation
    • Date & Time Handling
    • Financial Problems
    • Indexing & Ranking
    • Merging & Joining
    • Missing Values
    • Pivot & Unpivot
    • Text Processing
  • By Creator
    • Omid Challenges
    • ExcelBI Excel Challenges
    • ExcelBI Power Query Challenges
    • Crispo Challenges
  • By Software
    • DAX Challenges
    • Excel Challenges
    • Excel VBA Challenges
    • Google Sheets Challenges
    • Office Script Challenges
    • Power Query Challenges
    • Python Challenges
    • R Challenges
    • SQL Challenges
  • Books
    • 96 Common Challenges in Power Query