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

An express train takes 3 seconds to enter the tunnel which is 1 km long.
If it is travelling at 120 km an hour, how long will it take to pass completely through the tunnel?

In the addition below, all digits have been replaced by letters. Equal letters represent equal digits and different letters represent different digits.
ABCABA
BBDCAA
ABEABB
ABDBAA
------- +
AAFGBDH
What does the complete addition look like in digits?

What is the next number in this series?

4,12,84,3612....

Can you find out a way through which you can make five squares out of the given figure by moving just six match sticks?

James bond was pushed out of an aeroplane without any parachute.
He survived, How come?

A girl has as many brothers as sisters, but each brother has only half as many brothers as sisters. How many brothers and sisters are there in the family?

John’s parents have three sons: Snap, Crackle, and what’s the name of the third son?

I am the beginning of everything, the end of everywhere. I'm the beginning of eternity, the end of time and space. What am I?

O_er_t_o_

Complete the missing letters of the given word.