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!!!

Move four matchsticks to the below square to form three squares?

Can you find the dog hidden in a group of pandas?

100 prisoners are stuck in the prison in solitary cells. The warden of the prison got bored one day and offered them a challenge. He will put one prisoner per day, selected at random (a prisoner can be selected more than once), into a special room with a light bulb and a switch which controls the bulb. No other prisoners can see or control the light bulb. The prisoner in the special room can either turn on the bulb, turn off the bulb or do nothing. On any day, the prisoners can stop this process and say "Every prisoner has been in the special room at least once". If that happens to be true, all the prisoners will be set free. If it is false, then all the prisoners will be executed. The prisoners are given some time to discuss and figure out a solution. How do they ensure they all go free?

This is a simple one. You just have to count the number of Fs in the given sentence.

Finished Files are the result of years of scientific study combined with the experience of years.

How many did you count?

Can you find the odd number in the following?

2716, 4135, 5321 and 7145

Solve the equation by replacing the alphabet with numbers.

MOM + MOM + NO = BOOK=

I add 5 to 9 and get 2. The answer is correct, so what am I?

Can you count the number of children in the picture below

If a wheel has 54 spokes, how many spaces are there between the spokes?