Find out the missing number in the picture attached:

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

I know a nine-letter word having only one vowel.
Do you ?

There is a barrel with no lid and some wine in it. 'This barrel of wine is more than half full,' said Curly. 'No it's not,' says Mo. 'It's less than half full.' Without any measuring implements and without removing any wine from the barrel, how can they easily determine who is correct?

I am a white box having no key or lid.
Yet there is a golden treasure inside it.

What Am I?

Can you find a number that lies one third of the distance between 1/3 and 2/3?

I know a country, If you remove the last alphabet of its name, it will become a part of your body. Do you name it?

How can you leave a room with two legs and return with six legs?

There’s a one-story house in which everything is yellow. Yellow walls, yellow doors, yellow furniture. What colour are the stairs?

A woman who works in a sweet shop has a measurement of 32-26-36, is 5"4" tall, and wears size "6" shoes. What do you think she weighs?