Can you name some countries which do not have the alphabet 'A' in them?

The following "Brain Bat" means Slow Down.
S
L
O
W

Using the same logic, can you tell us what does the following Brain Bat means ?
E
V
I
G

Can you solve the below tricky visual equation?

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

An American nightclub called 'The Coconut Grove' had a terrible fire in which over 400 people died. A simple design flaw in the building led to a high death toll. Subsequently, regulations were changed to ensure that all public buildings throughout the country eliminated this one detail, which proved deadly. What was it?

A chicken farmer has figured out that a hen and a half can lay an egg and a half in a day and a half. How many hens does the farmer need to produce one dozen eggs in six days?

If Rajina's daughter is my daughter's mom, who am I to Rajina?

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

What is the longest word in the dictionary?