What is the word or phrase?

How can one talk without saying a single word?

In four steps you need to move the word 'cold' From 'warm' by replacing one alphabet at a time such that every word formed at each step is acceptable in English Dictionary.

A new Engineering building containing 100 offices had just been completed. John was hired to paint the numbers 1 to 100 on the doors. How many times will John have to paint the number nine (9)?

Find the next number in the series below

21 32 54 87 131 ?

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

What does man love more than life, and hate more than death or mortal strife; that which satisfied men want; the poor have, and the rich require; the miser spends, the spendthrift saves, and all men carry to their graves?

Your job is to measure 45 minutes if you have only two cords and matches to light the cords.

1. The two cords are twisted from various materials, so their different segments can burn at different rates.
2. Each cord burns from end to end in exactly one hour.

Describe your way of measuring the 45 minutes.

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 has horns but can’t beep. It is like to bleat but It is not a sheep. What is it?