I’m light as a feather, yet the strongest person can’t hold me for five minutes. What am I?

A boy was locked in a room by some robbers. All that is in the room is a piano, a calendar, and a bed. The room is locked from the outside. What does he eat, drink, and how does he escape and get out?

How many triangles can you find in this given picture?

While going to your grandmother's house, you counted Twenty houses on the right side. While returning back to your home, you counted Twenty houses on the left side.

How many houses are there between your home and your grandmother's home?

Can you solve the maths in the below-given picture equation?

You can win me and lose me but never buy me
You can not eat me and never want to part with me
I can make you cry or bring you joy
I am not a machine and definitely not a toy
You keep me but i am not forever just yours
You might find me in a case or on a shelf next to a vase
I am hard and i am tall if you bump me i am sure to fall
I am made of different materials and am at many events
If your lucky and fight hard I might be yours
What am I ?

This puzzle is for Harry Potter fans. Do you know why Tom Riddle is called Lord Voldemort?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

Before Mount Everest was discovered, what was the highest mountain in the world?

Complete the given grid with valid words. You can only use the letters AAEEIIMMPPTT.

Hint: The grid reads the same across as down.