OK so I looked at the lab. In this situation it looks like you have the static routes pointing to the switch in the middle....but it doesn't have any idea where to send them after that.
That's switch doesn't need an IP (unless this is a lab that needs you to do it or you're just trying to learn. But for the static routes you need to point to the Router the LAN is coming from. In other words on R1 you would need 3 separate static statements. 1 pointing to each router based on what LAN they have. For example R3 has the LAN 192.168.10.124 255.255.255.248
on R3 the routes would look like
ip route 192.168.10.64 255.255.255.240 192.168.10.123
ip route 192.168.10.0 255.255.255.192 192.168.10.122
ip route 192.168.10.112 255.255.255.248 192.168.10.125
Then all the other routers would need similar configs pointing to the neighbor with the LAN they have.
If you want an easy solution just remove all static routes and apply a dynamic routing protocol. You can paste the below into all 4 routers and it should work:
conf t
router eigrp 10
network 0.0.0.0
P.S. I removed ALL static routes and used the above dynamic configuration and everything could ping.
You had a LOT of static routes on the devices. Remember the router knows what networks its connected to so you don't need anything for those. You just need to provide the path for other networks out its exit interface or next hop neighbor.
Hope that helps.
-David
