Speaking of rivers, a man calls his dog from the opposite side of the river. The dog crosses the river without getting wet, and without using a bridge or boat. How?

Pronounced as one letter,
And written with three,
Two letters there are,
And two only in me.
I am double, I am single,
I am black blue and grey,
I am read from both ends,
And the same either way.

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

During a secret mission, an agent gave the following code to the higher authorities
AIM DUE OAT TIE MOD

However, the information is in one word only and the rest are fake. To assist the authorities in understanding better, he also sent them a clue, If I tell you any one character of the code, you can easily find out the number of vowels in the codeword.

Can you find out the code word?

Two guards were guarding the camp.Guard-1 was looking towards the south to make sure no threat is coming from the road.Guard-2 was looking at the north to make sure no threat is coming from the top. Suddenly Guard-1 ask the Guard-2 why he is smiling?How Guard-1 knows that Guard-2 is smiling?

If you read clockwise, you can form a word by inserting three missing letters in the picture given below. Can you do it?

What will you call your mother's brother's brother-in-law?

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

How many triangles are there on the puzzle below?

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