What is a word made up of 4 letters, yet is also made up of 3. Sometimes is written with 9 letters, and then with 4. Rarely consists of 6, and never is written with 5.

What has a ring but no finger?

Different lights make me strange by changing me into different sizes. What am I?

What word begins and ends with an E, but has only one letter?

When I go in I might cause pain. I cause you to spit and ask you not to swallow. I can fill your hole. What am I?

You have a square. What you have to do is cut and reassemble the square such that you create a Red Cross sign that has the same volume as that of the square.

On my way to St. Ives I saw a man with 7 wives. Each wife had 7 sacks. Each sack had 7 cats. Each cat had 7 kittens. Kittens, cats, sacks, wives. How many were going to St. Ives?

Find the number of squares in the below-given picture.

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

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

What is it?