What does the following BrainBat signifies?

ABCDEFGHIJKLMNOPQRSTUVWYZ

QQQQQQQQQQQQQQQQQQQQQQQQQ.

There is a hypothetical state between the USA and Mexico border 'Tango'.
Here 70 percent of the population have defective eyesight, 75 percent are hard of hearing, 80 percent have Nose trouble and 85 percent suffer from allergies, what percentage (at a minimum) suffer from all four ailments?

Can you name any English verb that becomes its past tense by simply rearranging the alphabets ?

f you were running a race, and you passed the person in 2nd place, what place would you be in now?

As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?

Can you complete the sequence?

192, 021, 222, 324, 252, 627, 2__, 9__?

Can you solve the below geography rebus by decoding the below rebus ?

Why did Navjot Singh Sidhu put the new January calendar in the freezer

We have shown you a regular water barrel as below. Without using any measuring device can you check if the barrel is more than half-filled or less than half-filled?

I start and end with 500 and carry a 5 in my heart. But I require the first letter and the first number to be complete. I am the name of a King.

Who am I ?