A man desired to get into his work building, however he had forgotten his code.
However, he did recollect five pieces of information
* Fifth number + Third number = 14
* The fourth number is one more than the second number.
* The first number is one less than twice the second number.
* The second number and the third number equals 10.
* The sum of all five numbers is 30.

What is the code ?

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?

A seven-year-old kid challenged his classmates that he can make the number one disappear by adding something to it.

How can he do that?

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

People put me on the table and cut me but do not eat me. What am I?

Can you solve the below tricky visual equation?

In the attached figure, you can see a chessboard and two rooks placed on the chess board. What you have to find is the number of squares that do not contain the rooks. How many are there?

Can you find the six hidden animals in the picture below?

You have to fill the below given grid in a manner that every row and column contains the digits 1 to 6. Also, make sure that the squares that are connected with each other must contains the same digit.