What am I?

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.

When is the top of a mountain similar to a savings account?

With pointed fangs I sit and wait; with piercing force I crunch out fate; grabbing victims, proclaiming might; physically joining with a single bite. What am I?

Can you solve below mathematical equation?

2^1234 - 2^1233

There was a strange boy who was born before his father. How can this be possible?

What number should come in place of the question mark below?

John drives to his office at 20km/hr. After reaching the office, he realizes that today is a holiday. He went back at an average speed of 30km/hr. Discounting the time spent in the stoppage what was the average speed of his journey?

Find the combined weight of the Cat, Dog and Rabbit in the given picture.

why number 8549176320 is one of a kind?