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 » ⭐️ Beginner » Page 33

⭐️ Beginner

Easy challenges for newcomers.

Reverse Cities Columns
Posted in
  • ExcelBI Excel Challenges
  • ⭐️ Beginner

Reverse Cities Columns

Challenge No. 159: Reverse all columns from Cities1 to Cities5.
Solved using: Power Query (List.RemoveNull, List.Reverse, List.Transform).

June 2, 2025July 11, 2025
Top Duration Players
Posted in
  • ExcelBI Excel Challenges
  • ⭐️ Beginner

Top Duration Players

Challenge No. 158: List the top 3 players in decreasing order of duration.
Solved using: Python in Excel.

June 2, 2025July 11, 2025
Find Pythagorean Dates
Posted in
  • Date & Time Handling
  • ExcelBI Excel Challenges
  • ⭐️ Beginner

Find Pythagorean Dates

Challenge No. 156: Pythagorean dates are those dates where DD^2 + MM^2 = YY^2
For example: 16-Dec-2020 where 16^2 + 12 ^2 = 20^2
List all Pythagorean dates (in YYYYMMDD format) from current century.
Solved using: Python in Excel.

June 1, 2025July 11, 2025
Polybius Cipher Encrypt
Posted in
  • ExcelBI Excel Challenges
  • Text Processing
  • ⭐️ Beginner

Polybius Cipher Encrypt

Challenge No. 155: Polybius cipher
Encrypt the text in column I as per grid in A2:G8.
Solved using: Python in Excel.

June 1, 2025July 11, 2025
Remove Words by Index
Posted in
  • ExcelBI Excel Challenges
  • Indexing & Ranking
  • ⭐️ Beginner

Remove Words by Index

Challenge No. 152: Remove the Words from column A as per index in column B.
Solved using: Excel VBA.

May 31, 2025July 11, 2025
Common Digits in Row
Posted in
  • ExcelBI Excel Challenges
  • ⭐️ Beginner

Common Digits in Row

Challenge No. 151: List the common digits between all the numbers in a row.
Solved using: Python in Excel.

May 31, 2025July 11, 2025
Grouping Data
Posted in
  • Crispo Challenges
  • Custom Grouping
  • ⭐️ Beginner

Grouping Data

Challenge No. 38: Sort Cookies into 2 groups: with Duplicate Price & with Unique prices Dynamic array function allowed but
Extra marks for Legacy solutions or PowerQuery Solution.
Solved using: R.

May 30, 2025July 11, 2025
Perfect Numbers Detection
Posted in
  • ExcelBI Excel Challenges
  • ⭐️ Beginner

Perfect Numbers Detection

Challenge No. 149: List the perfect numbers from column A.
Solved using: Python in Excel.

May 30, 2025
Rotate Grid by Count
Posted in
  • ExcelBI Excel Challenges
  • ⭐️ Beginner

Rotate Grid by Count

Challenge No. 148: Rotate the grid given in A4:E7 as per values given in B1.
Solved using: Power Query.

May 30, 2025July 11, 2025
Return Repeat Customers
Posted in
  • Crispo Challenges
  • Date & Time Handling
  • ⭐️ Beginner

Return Repeat Customers

Challenge No. 37: Return only dates with repeat customers and repeated customers Dynamic array function allowed but Extra marks for Legacy solutions or PowerQuery Solution.
Solved using: Python in Excel.

May 29, 2025July 11, 2025

Posts pagination

Previous 1 … 32 33 34 … 41 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