Can you solve below mathematical equation?

2^1234 - 2^1233

You bought me for dinner but never eat me. What am I?

Let's play a word game. Following are some meaningless words that can be completed by adding random letters on either side of the word.

For example, the word "rdo" can be formed into "pardon".

Using the same technique, can you complete the given words?
ecalc
airb
rinci
tibac
uidel
gorit
igna
eyho

The barber of Town shaves all men living in the town. No man living in the town is allowed to shave himself. The barber lives in that town. Who then shaves the barber of the town?

using four eights (8) and a one (1) and one mathematical symbol , create the number 100

One of the leprechaun is missing if you see the two pictures attached to this question. Where did he go? When he comes back, do you know where has he been?

Which is Odd One Out and why?

4377

3954

9862

8454

9831

If it took eight men ten hours to build a wall, how long would it take four men to build it?

What time is it when an elephant sits on a fence?

If nine thousand, nine hundred nine dollars is written as $9,909,
how should twelve thousand, twelve hundred twelve dollars be written?