A man and a dog were going down the street. The man rode, yet walked. What was the dog’s name?

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98

I am something people love or hate. I change peoples appearances and thoughts. If a person takes care of them self I will go up even higher. To some people I will fool them. To others I am a mystery. Some people might want to try and hide me but I will show. No matter how hard people try I will Never go down. What am I?

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?

Spot 5 differences in two Christmas tree below:

A man has a barrel filled with oil that weighs 100 pounds, and then he puts something into it. Now the barrel weighs less than 100 pounds. What did he put in the barrel?

Can you find the missing piece of the Porsche?

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?

John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?

What happened when the wheel was invented?