Make It Big!

You are given a number N (10 ≤ N ≤ 2×109). You have to perform exactly two swap operation. You can c...

Arya’s Counting

Little Arya has learnt to count the highest and the lowest number recently. She can easily find out ...

Geometry Forever

Fear no more, this is a problem of geometry! When Moyna was little, he had a math teacher named Shuk...

I Did Not Do the Assignment

Professor Petr is very angry over some of his students now-a-days for not doing assignment. He wants...

Itsy's Magic Cards

Itsy needs your help with her magic cards. Her magic cards grant her special spider-witch powers. Un...

Burger King

Every day, more than 11 million guests visit BURGER KING® restaurants around the world. And they do ...

Alayna and Vowels

Alayna loves playing. Every night before going to sleep, she plays different games with Baba. Now Al...

GPA Calculator

Shibli is a very good student. He is very regular and attentive in his classes. He is very serious a...

Choco Moco

Aminul & Imran are good friends. Not only friends but also teammates. Their team NSU MeowMax qua...

Byang's Day Out!

Byang and his little brother Kuno loves Cricket. But they never went to the stadium to watch a match...

Byang Loves Byangette

Byang Loves Byangette. Byangette Loves Byang. They love each other so much, that they go around the ...

Sofdor Ali Got Mail!

Sofdor Ali, the greatest scientist of Bangladesh, has countless fans. But no one is as close to him ...

Sofdor Ali's Magical Blackboard!

Sofdor Ali found interest in mathematics very early in his life. And now, he wants to spread this in...

Alice and the Chessboard

It’s Sunday afternoon, and Alice is in her room trying to figure out the rules of the game called Ch...

Arithmetic Sequence (Easy)

Arithmetic Sequence is a sequence of numbers where the difference between two consecutive numbers ar...

Alayna's Adventure Journey

Alayna recently went on her first adventure journey to Dumbulla Safari Park. She enjoyed the bumpy r...

Alayna and Strings

Alayna’s father Baba gifted her a nice alphabet book last month. And now Alayna is in love with alph...

Life of Decimals

Given any circle, if you divide the circumference of that circle with its diameter, you would always...

Anita's Experiment

Little Anita is doing an experiment with herself. Everyday, depending on her mood, she determines a ...

Sweety Miya The Saver

The universe is at war again because of the Alien oppressive ruler Hitla Nagasaki. Hitla is so bruta...