I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?

Rectify the following equality 101 - 102 = 1 by moving just one digit.

Replace the question mark with the correct number.

2 + 2= 4
3 + 3= 18
4 + 4= 48
5 + 5= ?

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

Decode the below four famous ciphers:

8P of the SS
1M of the E
1S of the SS
60M in 1H

Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

I have nine bottles of wine and one of the nine bottles is poisoned.
I need to find the poisoned bottle with two facts
(1) Poison is deadly, only a sip will cost death
(2) I have two mice to do so.

How should I do it?

Twenty frogs are sitting on a log floating on the surface of a river. Two of them decide to jump off into the water.

How many frogs are there on the log at this moment?

I look at you, you look at me I raise my right, you raise your left. What am I?

What famous saying does this rebus mean?

COME SERVED <---
COME SERVED
COME SERVED
COME SERVED
COME SERVED