Doctor Alex and a bus driver John are both in love with the same woman named Olivia. The bus driver need to go for a long trip of 10 days, Before he left he gave Olivia 10 apples.

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

I inserted a coin in a bottle and closed its mouth with the help of a cork. Now, I was able to take the coin out from the bottle without taking out the cork or breaking the bottle. Can you tell me how I did it?

Can you place six matchsticks in a manner that each of the matchsticks is in touch with the other five matchsticks?

Out of four images which one is the odd one out?

The following sentence is false. The preceding sentence is true.
Are these two sentences true or false?

What type of tree can I carry in my hand?

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.

Suppose you are sitting in an interview and the interviewee asks you an aptitude question.

You have three buckets with a capacity of 4 litres, 8 litres and 10 litres and you have a large tank of water. Now you have to measure 3 litres of water precisely using those buckets. How will you do it?

At a party, there are five people and a whole round cake lying at the centre of the table. Only four people will make a cut and take their piece and the last one will get the remaining piece on the table. How can they make sure that everyone gets a 1/5th of the piece?