Can you find out the smallest number that can be conveyed as the sum of three squares in three unique ways?

Can you find the odd number in the following?

2716, 4135, 5321 and 7145

You have a basket containing ten apples. You have ten friends, who each desire an apple. You give each of your friends one apple.
Now all your friends have one apple each, yet there is an apple remaining in the basket.
How?

Akbar summoned Birbal out of anger.
He told him that he will have to face death.
He asked him to make a statement and if the statement is true he will be buried alive and if the statement is false, he will be thrown at lions.
After hearing Birbal’s statement, Akbar could do nothing but smile.
He gave him 5 gold bars and let him go.

What did Birbal say?

Find the smallest sentence with all the English alphabet.

Find out a multi-digit number that if multiplied by the number 9 or any of its multiplications products (i.e. 18, 27, 36, 45,..) will result in the multiplication factor repeated (n) number of times.

John killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

Solve this riddle by finding the odd one out from the rest.

If an electric train is travelling south, then which way is the smoke going?

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?