Mankind has a sense of eternity or life after life built within their conscience mind. While some may claim they do not have this built within them, they must make a conscience decision that he/she will simply be annihilated at death and moreover cease to exist. Man is different from all other creatures in that he knows or has a sense of tomorrow and plans for his future.
There should be caution exercised when making excuses for disbelief. There is a difference between legitimate questions and simply searching for excuses to avoid, delay or deny any decision. The decision to do any of these, is in effect a decision to deny God.
When Americans are confronted with the question "do you believe in God or a universal spirit?", 89% of adults said yes in 2014 but that is down from 82% from previous years. Only 69% of Americans say they are absolutely certain that God exists which is down from 71% in 2007. The number of atheists and agnostics have obviously increased.
Christians often will quote scripture when trying to win over non-Christians, however, one must first assume the non-Christian believes that the Bible is the inerrant words of God or Christians may as well be quoting statements from Wikipedia. To those that are not familiar with the history or inerrant nature of the Bible, simply quoting scripture may provide little relevance to them.
One way to ascertain if the Bible is special and inspired by God is through prophecy and the fulfillment of it. There are many fulfilled prophecies that have been confirmed both through history and archaeology. One very profound prophecy is in the book of Daniel and is known as the seventy weeks prophecy. In this prophecy, which was written hundreds of years before the events were predicted. These prophecies would involve the re-creation of an Israeli state (1948) and the second coming of Christ.
but sanctify Christ as Lord in your hearts, always being ready to make a defense to everyone who asks you to give an account for the hope that is in you, yet with gentleness and reverence;
1 Peter 3:15 a