One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

It's a 7-letter word.
If we remove 1 letter from it, it remains the same.
If we remove 2 letters from it, it remains the same.
If we remove 3 letters from it, it remains the same.
If we remove all the letters from it, still it remains the same.
What is it?

The peacock is a bird that does not lay eggs. How do they get baby peacocks?

What does the below mathematical rebus mean?

There are 4 big houses. They are made from the materials: red marble, green marble, white marble and blue marble.

* Mrs Jennifer's house is somewhere to the left of the green marble one and the third one alone is white marble.
* Mrs Sharon owns a red marbles house and Mr Cruz does not live at either end, but lives somewhere to the right of the blue marbles house.
* Mr Danny lives in the fourth house, while the first house is not made from red marble.

Who lives where, and what is their house made from?

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

What does this rebus means ?

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

If 21x = 79x, what is the value of x?