Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

There are two words one resembles the "state of rest" and the other is related to "writing/reading material".

Can you name these two words which also sound similar?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

While preparing the table for dinner, wife came up with an idea to tease his mathematician husband. She asked her husband to pick nine toothpicks and make ten without breaking any toothpick.

The husband was also smart and did it within seconds. How ?

You have two strings whose only known property is that when you light one end of either string it takes exactly one hour to burn. The rate at which the strings will burn is completely random and each string is different.

How do you measure 45 minutes?

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

Replace the question mark with the correct number in the below-given picture?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

How can you take 2 from 5 and leave 4?

It has a long neck, A name of a bird, Feeds on cargo of ships, It's not alive,

What is it?