What is the next number in the series?

15 29 56 108 208 ?

The more of this there is, the less you see. What is it?

You need to move three matchsticks to form three squares. Can you do it?

The average age of 10 members of a committee is the same as it was 4 years ago, because an old member has been replaced by a young member. Find how much younger is the new member ?

Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?

There are two arch enemies Messi and Ronaldo who hate each other to an extreme. One day both were going together and a Jeanie appeared in front of them. Jeanie grants 3 wishes to Ronaldo and one to Messi.

Messi replied smartly 'Give me twice whatever Ronaldo demands'.

Ronaldo asked his 1st wish 'Give me 10000 billion dollars. Soon Messi gets 2000 billion dollars.
Ronaldo asked for his 2nd wish 'Give me one mansion in every country in the world. Soon Messi gets two mansions in every country of the world?

What should be Ronaldo's third wish?

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

What word is represented by this rebus?

My cousin lives in one story house in Antarctica. His house is made the of-of sandstone. what is the color of stairs?

There are four 3-link chains. All you have to do is join them into a big 12-link chain. For joining two closed links, one of the links must be cut and placed onto the other link for closing.

How many minimum links will you have to cut to make the big chain?