How many bricks does it take to complete a building that is 15 feet wide, 30 feet deep, and 12 feet tall made of brick?

Can you spot the hidden girl in the picture below?

Teacher ask the student

'Why are you standing on that chair in music class ?'.

what did student replied ?

You enter your friend's room. He is not in his room. Although you see that on the bed there are two dogs, five cats, two giraffes and three pigs. Also, a couple of chickens and ducks are flying in the room.

Calculate the number of legs standing on the floor.

You see me once in June, twice in November, and not at all in May. What am I?

Solve the puzzle by telling what does below picture means.

I shave every day, but my beard stays the same. What am I?

Find the hidden tiger in the given optical illusion ?

There is so small cabin inside a deep forest.
All the forest burned out to worst possible but the inside of the cabin is still the same.
However all the person inside the cabin die.

How come ?

What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?