I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?

Buy me, smell me or deliver me, I do not change.

Who am I?

What is wrong in the below Picture?

It is a six-letter word.
The first four letters are me.
The second and last letters are the same.
The fourth second and last letter is payment.

Who is it?

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

A clock loses 10 minutes each hour. If the clock is set correctly at noon, what time is it when it reads 3 PM?

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

A boy collects white seashells from the sea and brings them home every night. When he has enough of them, he decides to sell them to a trader.

The trader is ready to buy the shells and he asks the boy about the quantity. At this, the boy starts calculating. He has a giant box that contains 3 mini boxes. Two of them have another mini box inside. If the giant box can hold 50 shells, how many brown shells can he sell to the trader?

What four weights can be used to balance from 1 to 30 pounds?

What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?