This is what a Wireshark window looks like by default (using version 1.12.3 in this example):

From top to bottom you have:
- Menu Toolbar
- Main Toolbar
- Filter Toolbar
- Packet List
- Packet Details
- Packet Bytes
- Status Bar
In the Filter toolbar (where the input box named Filter lies) you can write filters to keep only the packets you want to inspect:
- How can I view only http requests on wireshark?
http.request
- How can I view response of http/https requests on wireshark?
http.response
Enhancing your filter with the IP address of yor NIC would also help reduce the amount of packets displayed:
http.response and ip.addr == x.x.x.x
You can also view both request and responses at the same time (as you can see in the image) using the filter: http.request or http.response.
- How can I view the requested query on wireshark?
If you select a packet in the Packet List section, detailed information is displayed in the Packet Details section where you have all the information about that packet that you need.