These are not tall stories. All the assertions are true, though you may think some of them are very hard to believe at first.
If you ask anyone about the theory of relativity, there is a very high probability that they could tell you the following:
Proof is an argument based on logic which establishes whether a given statement is true or false.
This issue considers some problems concerning applications of mathematics.
Q.624 Three motorists $A,B$, and $C$ often travel on a certain highway, and each motorist always travels at a constant speed.