Transform the word THINK into BRAIN while changing only one letter at a time in a manner that each of the word in the process is a real word!!!

He digs out tiny caves and stores gold and silver in them. He also built bridges of silver and made crowns of gold. They are the smallest you could imagine. Sooner or later everybody needs his help, yet many people are afraid to let him help them. Who is he?

It comprises roots which nobody sees,
Much taller than those trees,
Up and up it goes,
Still it never grows?

What will you call your mother's brother's brother-in-law?

What is the next number in this matchsticks series riddle?

Which of the below owl is odd one out?

What have one eye but still cannot see?

Can you solve the photo plexer logic ?

Using eight eights and addition only, can you make 1000?

See the given image carefully. What you have to do is move the blue checkers in the position of the black checkers and vice versa. You are only allowed to move the checker to an adjacent empty space. Do it in the least possible moves.