It's a protector.
It sits on a bridge.
One individual can see directly through it, while others wonder what it hides.

What is it?

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

How can you spell "White of an egg" in one word?
Hint: I know you can spell coke, poke, and joke.

If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?

A man is sitting in a bar when a rich man sits next to him. He turns to the rich man and says, “Did you know I know almost every song that has ever existed?”

The rich man laughs. The man then says, “I bet you all the money you have in your wallet that I can sing a genuine song with a lady’s name of your choice in it. The rich man laughs again and says, “OK, how about my daughter’s name, Jamie Armstrong-Miller?” Minutes later, the man collects his cash and the rich man goes home cashless. What song did the man sing?

If Bihan is 10, Anirudha is 20, and Kim and Seal are both 5, but Rikold is 10, how much is Kenniger by the same trend?

What English word has three consecutive double letters?

Find the missing number in the sequence below:

Five thieves looted a bank and they ran away in a car. The bank staff informed the police and they began the search of their car in their jeep. They found them on a road and chased them eventually catching them. The light that is used to fill the number plate was broken on the thieves' car. Also, the headlights of the jeep police were not working. How were the police able to catch the thieves then?

I make two people out of one. What am I?