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

Find the smallest sentence with all the English alphabet.

Astrology starts with the alphabet A, Biology starts with B, Psychology with P and Limnology with L.

Can you find an "ology" that begins with a P?

What does below Rebus mean ?

esgg sgeg gegs gsge

No matter how little or how much you use me, you change me every month. What am I?

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

Christina, Allison and Lena are 3 daughters of John a well-known Mathematician, When I asked John the age of their daughters. He replied "The current age of her daughters is prime. Also, the difference between their ages is also prime."

How old are the daughters?

I am a white box having no key or lid.
Yet there is a golden treasure inside it.

What Am I?

What you cannot hold but it is yours?

You need to remove two matchsticks to make the below equation true. Can you do it ?