What is so fragile that saying its name breaks it?

Spot 5 differences in two Christmas tree below:

In a secret society, a buried chamber can be accessed only via a secret password. The password is seven characters long and comprises of just letters and numbers.

You find a code that can help you in cracking the password. The code says "You force heaven to be empty".

Can you deduce the password from that?

Using Only Five 5's and any mathematical operator make sum as 37

You have to fill the below given grid in a manner that every row and column contains the digits 1 to 6. Also, make sure that the squares that are connected with each other must contains the same digit.

I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

You are playing a game with your friend Jack. There are digits from 1 to 9. You both will take turn erasing one digit and adding it to your score. The first one to score 15 points will win the game.

Would you want to play first or second?

PS: The sum should be exactly 15.

John’s parents have three sons: Snap, Crackle, and what’s the name of the third son?

How many times can you subtract the number two from the number fifty?

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?