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

In a contest, four fruits (an apple, a banana, an orange, and a pear) have been placed in four closed boxes (one fruit per box). People may guess which fruit is in which box. 123 people participate in the contest. When the boxes are opened, it turns out that 43 people have guessed none of the fruits correctly, 39 people have guessed one fruit correctly, and 31 people have guessed two fruits correctly.
How many people have guessed three fruits correctly, and how many people have guessed four fruits correctly

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?

What does this simple rebus mean?

In case you were starting to feel confident, this one was meant for third graders in Vietnam. The answer is 66, but we don't blame you for scratching your head about how they got there.

Can you solve the below geography rebus by decoding the below rebus ?

Can you solve the tricky chess rebus puzzle below by ciphering the hidden meaning?

How many triangles are there on the puzzle below?

In the four images below, can you find the odd one out?

What do you get if you add 2 to 100 four times?