Decode below rebus
D
N
A
T
S , D

As shown in the image, the nine Dogs are square fenced. By constructing just two square fences can you make sure that two Dogs cannot meet each other without crossing the fence?

There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

Find the next number in the sequence

5 12 24 36 ?

I have one of the three numbers: 1, 2, or 3 in my mind. I speak only truth. You can ask me just one question for which I will only reply in yes or no or don't know. What question will you ask from me so that you are able to know the number?

Which alphabet letter is a question?

Can you solve the photo plexer logic ?

Take away my first letter, then take away my second letter. Then take away the rest of my letters, yet I remain the same. What am I?

There are people and strange monkeys on this island, and you can not tell who is who (Edit: until you understand what they said - see below). They speak either only the truth or only lies.
Who are the following two guys?
A: B is a lying monkey. I am human.
B: A is telling the truth.

I’m tall when I’m young, and I’m short when I’m old. What am I?