The chance of Mr John winning the lottery is 10%. All participants lined up and Mr John is 4th in the row. The first three participants lose the lottery.

What is the chance of Mr John now?

A bag contains 64 balls of eight different colours. There are eight of each colour (including red). What is the least number you would have to pick, without looking, to be sure of selecting 3 red balls?

If an earthquake is 1 point higher on the Richter Scale than another earthquake which is actually 10 times stronger, how much stronger would an earthquake be if it was just half a point higher on the Richter scale?

I have four wings but can't fly.
I express no emotions.
I am found on the exact spot every time you look.
I keep toiling away with a little sound.

Do you know what am I?

The centre of the third figure is empty. What digit should fit inside?

As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?

Where do you go to learn how to make ice cream?

I am the fastest animal but cannot climb the tree. What am I?

Can you identify the hidden rebus in the image below?

You need to remove two matchsticks to make the below equation true. Can you do it ?