## Deploy Folding Table of contents

This mathematical puzzle is a fun and engaging way to spend your time while sharpening your intellectual capabilities. Dive into this **exciting**, **mental-stimulating** activity and experience the joy of **learning** and **problem-solving** in the most delightful way.

## Mathematical Riddle: You Have to Find the Next Number to Solve the Challenge

Prepare yourself for a fun-filled activity that challenges your cognitive skills. The task for the day is a mathematical riddle with a simple aim â€“ to find the next number in a series. This is not a random collection of numbers, but a carefully chosen sequence designed to exercise your brain, challenge your concentration, and keep you entertained.

The riddle presents you with a sequence of numbers: 1, 3, 6, 10, 15, 21. They might seem random, but a close look reveals a pattern. Your mission, if you choose to accept, is to identify the number that follows 21. This task does not require you to be a mathematician, but it does need your creativity and logical reasoning.

The beauty of this challenge is that it doesn't come with a time limit. You can take as long as you need, giving you ample space to exercise your brain, strengthen your memory, and enjoy the process of problem-solving.

- Improve your concentration
- Boost your cognitive skills
- Train your brain to think from different angles using the lateral thinking approach

## The Solution

Have you given the riddle a shot? Did you find the next number? The correct value to follow 21 in this series is **28**. If you've arrived at the same conclusion, congratulations! You've successfully solved the puzzle.

Now, how did we arrive at 28? Here's a quick rundown: The progression in the sequence is built on a pattern of incremental addition. Each number is the sum of itself and the number equivalent to its position in the sequence. For instance, the third number (6) is the sum of the preceding number (3) and 3 (its place in the sequence). Following this pattern, 21 (the sixth number) plus 7 (its sequence position) equals 28.

Regularly solving such mathematical puzzles can make you sharper and more alert. They are designed to enhance your cognitive functions, bolster your critical thinking, and increase your IQ in a fun and engaging way.

If you found this challenging, try your hand at more mathematical puzzles to further hone your problem-solving abilities. They're a great way to refresh your mind, break the monotony, and add a little zest to your routine. Share this mathematical challenge on social media and challenge your friends to see who can solve it first!

In conclusion, the number following 21 in the given sequence is **28**. Remember, the key to solving such puzzles is to stay focused, understand the underlying pattern, and apply your logic. Happy problem-solving!

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