Sticky-Glitchy MouseOver Issue

New member.

I am not sure if salutations and gratitude are allowed in this type of forum, so I will skip them.

Issue: The code below is a sample of a section I am working on for a COVID theme website exercise. The issue with the code is that the MouseOver is sticky-glitchy, meaning that when I mouseover it is not responding as it should - it sometimes stays in its natural state or it bounces in and out or responses as it should when you pass the cursor over the target areas.

Question: Could someone help me identify where I am failing here?

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Sticky-Glitchy MouseOver Issue</title>

<style>
* {
    box-sizing: border-box;
}

body {
    background-color: #f1f1f1;
}

h1, h2, h3, h4, h5, h6, p {
    text-align: center;
    font-family: "Raleway";
}
.top {
    padding: 10px;
    text-align: center;
    background-color: #f1f1f1;
    color: black;
    font-size: 20px;
    font-family: "Raleway";
    display: block
}
.quiz {
    border-radius: 8px;
    margin: 9px;
    float: left;
    width: 24%;
    padding: 15px;
    height:  250px;
    background-color: #f9f9f9;
    display: inline-block;
    text-align: center;
    font-family: "Libre+Baskerville";
    font-size: 20px;    
    box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
}
.buttonrow {
    float: left;
    width: 25%;
    padding: 10px;
    height:  auto;
    background-color: #f1f1f1;
    display: inline-block
}
.row {
    column-gap: 20px;
}
.row:after {
    content: "";
    display: table;
    clear: both;
}
.button {
    position: relative;
    font-family: "Raleway";
    font-weight: bold;
    background-color: #000;
    border-radius: 5px;
    border: none;
    color: white;
    padding: 12px 28px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    margin: 4px 2px;
    cursor: pointer;
    transition-duration: 0.4s;
}
.button1:hover {
  box-shadow: 0 10px 14px 0 rgba(0,0,0,0.24),0 17px 50px 0 rgba(0,0,0,0.19);
}
</style>

</head>
<body>

<div class="top">
    <h2>Quiz</h2>
</div>
<div class="row">
    <div class="quiz">
        <div onmouseover="qone_Over(this)" onmouseout="qone_Out(this)"><strong>Question One</strong> <br><br> The Spanish Flu was a Pandemic.<br><br> <br><br> <strong>True or False?</strong> <br><br> Mouse Over - To Reveal The Answer</div>
    </div>
    <div class="quiz">
        <div onmouseover="qtwo_Over(this)" onmouseout="qtwo_Out(this)"><strong>Question Two</strong> <br><br> The term - A Slippery Slope - is a general fallacy of logic that plays no role in Denialism.<br> <br><br> <strong>True or False?</strong> <br><br> Mouse Over - To Reveal The Answer</div>
    </div>
    <div class="quiz">
        <div onmouseover="qthree_Over(this)" onmouseout="qthree_Out(this)"><strong>Question Three</strong> <br><br> COVID19 is the 19th version of the Coronavirus Disease.<br> <br><br> <strong>True or False?</strong> <br><br> Mouse Over - To Reveal The Answer</div>
    </div>
    <div class="quiz">
        <div onmouseover="qfour_Over(this)" onmouseout="qfour_Out(this)"><strong>Question Four</strong> <br><br> Washing your hands thouroughly for 20 to 30 seconds with regular soap, helps slow the spread of COVID. <br><br> <strong>True or False?</strong> <br><br> Mouse Over - To Reveal The Answer</div>
    </div>
</div>
<div class="row">
    <div class="buttonrow">
    <h2><a href="" class="button">Read More</a></h2>
    </div>
    <div class="buttonrow">
    <h2><a href="" class="button">Read More</a></h2>
    </div>
    <div class="buttonrow">    
    <h2><a href="" class="button">Read More</a></h2>
    </div>
    <div class="buttonrow">    
    <h2><a href="" class="button">Read More</a></h2>
    </div>
</div>

<script>
// MouseOver Message One Show
    function qone_Over(obj_ov1) {
      obj_ov1.innerHTML = "<strong>True</strong> - <i>The Spanish flu pandemic of 1918, the deadliest in history, infected an estimated 500 million people worldwide—about one-third of the planet's population—and killed an estimated 20 million to 50 million victims, including some 675,000 Americans.</i>"
    }
// MouseOver Message One Hide
    function qone_Out(obj_ot1) {
      obj_ot1.innerHTML = "<strong>Question One</strong> <br><br> The Spanish Flu was a Pandemic.<br><br> <br><br> <strong>True or False?</strong> <br><br> Mouse Over - To Reveal The Answer"
    }
// MouseOver Message Two Show
    function qtwo_Over(obj_ov2) {
      obj_ov2.innerHTML = "<strong>False</strong> - <i>Denialism employs five basic approaches: conspiracy, selectivity (cherry-picking), fake experts, impossible expectations, and general fallacies of logic.</i>"
    }
// MouseOver Message Two Hide
    function qtwo_Out(obj_ot2) {
      obj_ot2.innerHTML = "<strong>Question Two</strong> <br><br> The term - A Slippery Slope - is a general fallacy of logic that plays no role in Denialism.<br> <br><br> <strong>True or False?</strong> <br><br> Mouse Over - To Reveal The Answer"
    }
// MouseOver Message Three Show
    function qthree_Over(obj_ov3) {
      obj_ov3.innerHTML = "<strong>False</strong> - <i>COVID19 means that this string of the Coranvirus Disease emerged or was discovered in the year 2019.</i>"
    }
// MouseOver Message Three Hide
    function qthree_Out(obj_ot3) {
      obj_ot3.innerHTML = "<strong>Question Three</strong> <br><br> COVID19 is the 19th version of the Coronavirus Disease.<br> <br><br> <strong>True or False?</strong> <br><br> Mouse Over - To Reveal The Answer"
    }
// MouseOver Message Four Show
    function qfour_Over(obj_ov4) {
      obj_ov4.innerHTML = "<strong>True</strong> - <i>Hygiene, regardless of pandemics-epidemics and what not – having good hygiene practice is an essential part of maintaining a healthy lifestyle and killing off illness causing bacteria reducing the risk for diseases.</i>"
    }
// MouseOver Message Four Hide
    function qfour_Out(obj_ot4) {
      obj_ot4.innerHTML = "<strong>Question Four</strong> <br><br> Washing your hands thouroughly for 20 to 30 seconds with regular soap, helps slow the spread of COVID. <br><br> <strong>True or False?</strong> <br><br> Mouse Over - To Reveal The Answer"
    }
</script>

</body>
</html>