What has a ring but no finger?

What can you deduce from the following BrainBat?

CRY
LMKI

An express train takes 3 seconds to enter the tunnel which is 1 km long.
If it is travelling at 120 km an hour, how long will it take to pass completely through the tunnel?

Can you solve the tricky chess rebus puzzle below by ciphering the hidden meaning?

In a jungle where there are no street lights or any other artificial source of lights, I notice a black snake crossing the road.
How did I get sight of the snake?

At my favorite fruit stand,
an orange costs 18,
a pineapple costs 27,
and a grape costs 15.
Using the same logic, can you tell how much a mango costs?

What does the below image rebus riddle means ?

What demands an answer, but asks no questions

Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?

What does below Rebus say?

XLR8