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
Sort Columns by Frequency
Posted in
  • ExcelBI Excel Challenges
  • ⭐️ Beginner

Sort Columns by Frequency

Challenge No. 188: Sort Col 1 through 5 column wise on the basis of frequency.
Solved using: Power Query (List.Transform).

June 12, 2025July 11, 2025
Table Transformation! Part 13
Posted in
  • Data Cleaning
  • Excel Challenges
  • Omid Challenges
  • Power Query Challenges
  • ⭐️⭐️ Easy

Table Transformation! Part 13

Challenge No. 131: Transform the question structure into the result structure.
Solved using:Excel (HSTACK, LET, ROWS), Google Sheets, Power Query (List.Skip, List.Split, List.Transform), Python, Python in Excel, and R.

June 12, 2025July 11, 2025
Transform Input to Output
Posted in
  • Column Transformation
  • ExcelBI Power Query Challenges
  • ⭐️⭐️⭐️⭐️⭐️Expert

Transform Input to Output

Challenge No. 55: This time problem statement is short.
Solved using: Power Query.

June 12, 2025July 30, 2025
Find Anagram Word Pairs
Posted in
  • ExcelBI Excel Challenges
  • ⭐️ Beginner

Find Anagram Word Pairs

Challenge No. 187: An Anagram is a word which is made by rearranging the letters of another word.
Solved using: Power Query.

June 12, 2025July 11, 2025
Compare Odd Even Counts
Posted in
  • ExcelBI Excel Challenges
  • ⭐️ Beginner

Compare Odd Even Counts

Challenge No. 186: If odd numbers are less, then post odd numbers.
Solved using: Power Query (List.Transform).

June 11, 2025July 11, 2025
First In First Out (Fifo)!
Posted in
  • Financial Problems
  • Omid Challenges
  • ⭐️⭐️⭐️⭐️⭐️Expert

First In First Out (Fifo)!

Challenge No. 130: Consider a warehouse operating with an initial value of 0 and following a First-In, First-Out (FIFO) approach.
Solved using:Excel (FILTER, TAKE), Google Sheets, Power Query (Table.SelectRows), Python, Python in Excel, and R.

June 11, 2025July 11, 2025
List Buy and Sell Balances
Posted in
  • Column Transformation
  • Date & Time Handling
  • ExcelBI Power Query Challenges
  • ⭐️⭐️⭐️⭐️⭐️Expert

List Buy and Sell Balances

Challenge No. 54: From the transaction table, generate output as shown.
Solved using: Power Query.

June 11, 2025July 30, 2025
Months With 5 Weekends
Posted in
  • ExcelBI Excel Challenges
  • ⭐️ Beginner

Months With 5 Weekends

Challenge No. 184: List the years in this century which are having at least 2 months which had 5 Fridays, 5 Saturdays and 5 Sundays.
Solved using: Python in Excel.

June 11, 2025July 11, 2025
List Tetradic Numbers
Posted in
  • ExcelBI Excel Challenges
  • ⭐️ Beginner

List Tetradic Numbers

Challenge No. 183: List Tetradic numbers from column A.
Solved using: Python in Excel.

June 10, 2025July 11, 2025
Fill Arithmetic Progression
Posted in
  • ExcelBI Excel Challenges
  • Missing Values
  • ⭐️ Beginner

Fill Arithmetic Progression

Challenge No. 182: Find the missing numbers in Arithmetic Progressions given.
Solved using: Python in Excel.

June 10, 2025July 11, 2025

Posts pagination

Previous 1 … 77 78 79 … 117 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