What word begins and ends with an E, but has only one letter?

The below given figure comprises of a pattern through which you can determine the missing letter. Can you push your mind to find the pattern and add the missing letter?

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

Can you find the 09 errors in the picture below?

In a secret society, a buried chamber can be accessed only via a secret password. The password is seven characters long and comprises of just letters and numbers.

You find a code that can help you in cracking the password. The code says "You force heaven to be empty".

Can you deduce the password from that?

In which direction should the missing arrow point?

John is looking at Jenifer, but Jenifer is looking at Jacob. John is married, but Jacob is not.

Is a married person looking at an unmarried person ?

Complete the table series riddle by finding the number that can replace "??".

I throw two dice simultaneously.

What is the probability of getting a sum as 9 of the two numbers shown?

Three ants are sitting at the three corners of an equilateral triangle. Each ant starts randomly picks a direction and starts to move along the edge of the triangle. What is the probability that none of the ants collide?