Post Title Only On Home page

1. Log in to your blogger account and Go to Design >> Edit HTML
2. Find this tag by using Ctrl+F   </head>
3. Paste below code before </head> tag

<style type='text/css'>

<b:if cond='data:blog.pageType != "item"'>
.post {
margin:.5em 0 1.5em;
border-bottom:0px dotted $bordercolor;
padding-bottom:1.0em;
height:50px;
}
.post h3 {
margin:.25em 0 0;
padding:0 0 4px;
font-size:20px;
font-family:Tahoma,Georgia,Century gothic,Arial,sans-serif;
font-weight:normal;
line-height:1.4em;
color:#cc6600;
}

.post h3 a, .post h3 a:visited, .post h3 strong {
display:block;
text-decoration:none;
color:#cc6600;
font-weight:normal;
}

.post h3 strong, .post h3 a:hover {color:#333333;}

.post-body {display:none;}
.post-footer {display:none;}
.comment-link {display:none;}
.post img {display:none;}
.post blockquote {display:none;}
.post blockquote p {display:none;}
h2.date-header {display:none;}
.post-labels {display:none;}
.post-rating {display:none;}

</b:if>

</style>

4. Now click save template. 
5. If you want to change post amount on home page,
6. Go to Design >> Page Element  and  find post body and click Edit as below image.