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!!!

You have two strings whose only known property is that when you light one end of either string it takes exactly one hour to burn. The rate at which the strings will burn is completely random and each string is different. How do you measure 45 minutes?

I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?

Can you solve the below tricky visual equation?

Solve the alphametic puzzle by replacing the alphabet with the number.

S T O R M +
S O L E S
=========
T O W E L
=========

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

Which country gets ill every time?

What building has the most stories?

The LCD device should be able to tell the right time in the format HH:MM: SS in a 12-hour format. You can refer to the picture to get an idea. The device is a simple "level indicator" which has to be converted into a watch. How will you program it to work?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?