A seven-year-old kid challenged his classmates that he can make the number one disappear by adding something to it.

How can he do that?

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

There are 3 apples in the basket and you take away 2. How many apples do you have now?

What occurs twice in a week, once in a year but never in a day?

Be active and find the killer in the picture Riddle below.

No matter how little or how much you use me, you change me every month. What am I?

There are 100 bulbs in a room. 100 strangers have been accumulated in the adjacent room. The first one goes and lights up every bulb. The second one goes and switches off all the even-numbered bulbs - second, fourth, sixth... and so on. The third one goes and reverses the current position of every third bulb (third, sixth, ninth? and so on.) i.e. if the bulb is lit, he switches it off and if the bulb is off, he switches it on. All the 100 strangers progress similarly.

After the last person has done what he wanted, which bulbs will be lit and which ones will be switched off?

Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

How can you write nineteen in a manner that if we take out one, it becomes twenty?

It's a protector.
It sits on a bridge.
One individual can see directly through it, while others wonder what it hides.

What is it?