You have two buckets of 11 liters and 6 litres.
How can you measure exactly 8 litres?

I am first found in caves, now prolific online; I am a depiction, a drawing, a symbol, or sign. I will convey whichever mood you could wish; or for that matter, a fist, flask, or fish. What am I?

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

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?

How many points are there on the globe where, by walking one mile south, then one mile east and then one mile north, you would reach the place where you started?

What has many teeth, but cannot bite?

Why is a river so rich ?

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

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

What Am I?

A large container is kept in open under the rain. Every passing hour, the water collected inside the container becomes double what it was.

In ten hours, the container is filled completely. Can you calculate how long would it have taken to be filled in half?