What is so fragile that saying its name breaks it?

Which alphabet letter is a question?

Can you find out the missing number in the grid?

How many pluses should we put between the digits of 987654321 to get a total of 99, and where?

Nodes are shown below and you need to connect them based on the following rule: Every node can be connected to the number of nodes inside them, i.e. the first node there is a value of 1 which indicates that the first node can connect to exactly one node only.Can you do it?

A mathematician couple was having a Frappuccino in Starbucks sitting opposite to each other. Suddenly the guy noticed the text written on the paper in front of them and exclaimed that it was wrong. The girl denied it and said it is appropriate. Both are correct. What is written on the paper?

Can you convert the number zero(0) into a positive number using just one mathematical operator ?

It belongs to you, but other people use it more than you do. What is it?

Find the number of squares in the below picture

In the given picture, in how many ways can you read the word "Tiger"?