2015年6月15日「モバイル英語学習」第 299 号(英語のなぞなぞ ): What Am I?

Notes:
somebody ある人;
nobody だれでもない;
forwards 前方へ;
backwards 後方へ、逆に;
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1.What two words have the most letters?
2.If you look at my front, I am somebody, but if you look at my back, I am nobody. What am I?
3.What goes around the world but stays in one corner?
4.Forwards I’m heavy, but backwards I’m not. What am I?
5.What has four legs but can’t walk?
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▼答えはこちら:
https://ix1.inter-scc.jp/ic/entry/?i=SZdsJtiSoiE