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

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

Rob is taller than Edwin, and Jurgen is shorter than Rob.
Of only one of the following statements, we now certainly know it is correct:

A.Edwin is taller than Jurgen
B.Jurgen is taller than Edwin
C.It cannot be determined if Jurgen or Edwin is the tallest.

The doctor advised his patient to take a tablet after every fifteen minutes. He gave him five tablets in total.

How much time will he take to have all the five tablets?

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

What is a word made up of 4 letters, yet is also made up of 3. Sometimes is written with 9 letters, and then with 4. Rarely consists of 6, and never is written with 5.

Can you solve the photo plexer logic ?

John needs to purchase 100 chocolates from three different shops and he has exactly 100 rupees to do that which he must spend entirely. He must buy at least 1 Chocolate from each shop.

The first shop is selling each chocolate at 5 paise, the second is selling at 1 rupee and the third is selling at 5 rupees.

How many chocolates should he buy from each shop?

Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

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