What's the next in the series?

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

He loves to dance, twist and prance, he shakes his tail, and as a way he sails, wingless he flies into the sky. What is he?

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

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 ?

Solve The below Equation:

ALFA + BETA + GAMA = DELTA

I am never scared but became petrified and can’t live in a house but would die to make one. What am I?

You throw me out when you want to use me and you take me in when you don't want to use me.

Who 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 ?

This is a classy optical illusion puzzle. What more you can find except bricks in the image below?