O_er_t_o_

Complete the missing letters of the given word.

My cousin lives in one story house in Antarctica. His house is made the of-of sandstone. what is the color of stairs?

How many people must be gathered together in a room, before you can be certain that there is a greater than 50/50 chance that at least two of them have the same birthday?

How far can you walk into the woods?

As shown in the image, the nine Dogs are square fenced. By constructing just two square fences can you make sure that two Dogs cannot meet each other without crossing the fence?

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.

We have four gears with below features=> Both Gear A and D has 60 teeth=> Gear B has 40 teeth=> Gear C has 20 teeth=> Every two minutes, Gear B makes 25 full turns.What is the relative speed of Gear A and Gear B?

Your mother’s brother’s only brother-in-law is asleep on your couch. Who is asleep on your couch?

Can you find out the missing number?

? 4 5 3 5

9 5 7 10 3

I am quite hot but become too cold if you remove the first two letters. What am I?