What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

An artist while painting a scenic beauty, decides to paint three layers of blue colour on the sky.

Which layer will go on the first?

What type of tree can I carry in my hand?

Which alphabet letter is a question?

You knock a Table over in the library, and suddenly 20 eyes are looking at you.

A convention is held where all the big logicians are summoned. The master places a band on everyone's forehead. Now all of them can see others bands but can't see his own. Then they are told that there are different colours of bands. All the logicians sit in circle and they are further explained that a bell will ring at regular intervals. The moment when a logician knew the colour of band on his forehead, he will leave at the next bell. If anyone leaves at the wrong bell, he will be disqualified.

The master assures the logicians that the puzzle will not be impossible for anyone of them. How will the logicians manage ?

Different lights make me strange by changing me into different sizes. What am I?

A network of 20 x 10 squares is given to you.

Can you calculate how many unique squares and rectangles can be formed combining two or more individual squares ?

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

I noticed one of the words in the oxford dictionary is spelled incorrectly. What about you?