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

On one occasion, A Boy collects 71 rupees in form of 20 paise and 25 paise. He collects a total of 324 coins.

Can you tell me how many 20-paisa and 25-paisa he got?

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

Spot what is wrong here in below Picture?

I am sometimes honest
Sometimes dishonest
I can be sweet and also bitter
I can hurt you real bad and
also make u smile and blush ☺️
What am I?

You are in a room that has three switches and a closed door. The switches control three light bulbs on the other side of the door. Once you open the door, you may never touch the switches again. How can you definitively tell which switch is connected to each of the light bulbs?

Can you find the odd number in the following?

2716, 4135, 5321 and 7145

Can you write down eight eights so that they add up to one thousand?

What is the Surname of Barbie Doll?

How many sides does a circle have?