There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?

Find the mistake in the below maths equations

A = 2
A(A-1) = 2(A-1)
A2-A = 2A-2
A2-2A = A-2
A(A-2) = A-2
A = 1

I live in a bowl. I can swim. I have a tail. I also have fins and big eyes. What am I?

10+10 and 11+11 can give you the same answer.

Explain how?

I taste better than I can smell. Who am I?

What's the only room from which no one can enter or leave

You are given with the following sum. Each of the letters can be decoded as a digit. If we tell you that D = 5, then can you solve it entirely?

DONALD
+GERALD
=ROBERT

Eight of us go fourth, not back, to protect our king from an attack. What are we?

You are stuck on an island where you have nothing. You find four pieces of paper somewhere on the island. What will be your strategy to escape from the island safely?

PS: No other resource is available to you on the island, neither can you build anything.

Can you solve below mathematical equation?

2^1234 - 2^1233