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 15

⭐️ Beginner

Easy challenges for newcomers.

Create Alphabetic Searchlight Grid
Posted in
  • ExcelBI Excel Challenges
  • ⭐️ Beginner

Create Alphabetic Searchlight Grid

Challenge No. 430: Create an alphabetic searchlight as shown.
Solved using: Python in Excel.

October 3, 2025July 23, 2025
Find Missing Pythagorean Quadruple
Posted in
  • ExcelBI Excel Challenges
  • ⭐️ Beginner

Find Missing Pythagorean Quadruple

Challenge No. 429: A Pythagorean quadruple is a set of 4 integers a, b, c, d such that d^2 = a^2+b^2+c^2.
Solved using: Python in Excel.

October 2, 2025July 23, 2025
Double Accumulated Cipher Encoding
Posted in
  • ExcelBI Excel Challenges
  • ⭐️ Beginner

Double Accumulated Cipher Encoding

Challenge No. 427: Double Accumulate Cipher
Step 1.
Solved using: Python.

October 1, 2025July 23, 2025
Blend RGB Colors into Hex
Posted in
  • ExcelBI Excel Challenges
  • ⭐️ Beginner

Blend RGB Colors into Hex

Challenge No. 425: To blend hex color, take the average (round to 0) of respective Rs, Gs and Bs of two colors and generate the Hex color for the result.
Solved using: Python in Excel.

September 30, 2025July 23, 2025
Sales Year Monthly Summary
Posted in
  • ExcelBI Power Query Challenges
  • ⭐️ Beginner

Sales Year Monthly Summary

Challenge No. 179: Generate the result table from problem table.
Solved using: R.

September 29, 2025July 14, 2025
Stack Matrix Diagonals in Rows
Posted in
  • ExcelBI Excel Challenges
  • ⭐️ Beginner

Stack Matrix Diagonals in Rows

Challenge No. 421: Stack the diagonals read from left to right of a matrix in rows.
Solved using: Python.

September 28, 2025July 23, 2025
Decode Color Band Resistance
Posted in
  • ExcelBI Excel Challenges
  • ⭐️ Beginner

Decode Color Band Resistance

Challenge No. 420: For the given color bands in Column E, work out the total resistance.
Solved using: Python in Excel.

September 28, 2025July 23, 2025
Cyclops and Triangular Numbers
Posted in
  • ExcelBI Excel Challenges
  • ⭐️ Beginner

Cyclops and Triangular Numbers

Challenge No. 415: A Cyclops number is a number that has a zero in the center (so, it needs to have odd number of digits and >=3 digits).
Solved using: Python in Excel.

September 25, 2025July 23, 2025
Pivot Using Suffix Headers
Posted in
  • Custom Grouping
  • ExcelBI Excel Challenges
  • Pivot & Unpivot
  • ⭐️ Beginner

Pivot Using Suffix Headers

Challenge No. 413: Pivot the given data with headers suffixed with 1, 2.
Solved using: Python.

September 24, 2025July 23, 2025
Count Unique Letters in String
Posted in
  • ExcelBI Excel Challenges
  • ⭐️ Beginner

Count Unique Letters in String

Challenge No. 399: Extract the unique alphabets from the given strings and count their frequencies of occurrence.
Solved using: Python.

September 17, 2025July 23, 2025

Posts pagination

Previous 1 … 14 15 16 … 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